All Gem5.com / Gemstones

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Zoisite

Zoisite: Zoisite is a hydrous calcium aluminum silicate in the Epidote group, with an orthorhombic crystal sy (read full)

Zircon

Zircon: Zircon is a zirconium silicate with a tetragonal crystal system, and also contains thorium and urani (read full)

Watermelon Tourmaline

Watermelon Tourmaline: Watermelon Tourmaline is a bi-colored/tri-colored/parti-colored occurrence of Tourmaline, and this a (read full)

Vesuvianite

Vesuvianite: Vesuvianite is a hydrous calcium magnesium aluminum silicate with a tetragonal crystal system. It is (read full)

Unarovite

Unarovite: Uvarovite is a rare, calcium-chromium emerald-green variety of Garnet. Together with grossular (calc (read full)

Turquoise

Turquoise: Turquoise is a hydrated phosphate of copper and aluminum in the Phosphates, Arsenates, Vanadates gro (read full)

Tugtupite

Tugtupite: Tugtupite is a mineral closely related to sodalite and hackmanite, all cyclosilicates whose structur (read full)

Topaz

Topaz: The transparent, colored crystals, which also have good luster, are widely used as gems.
To (read full)

Titanite

Titanite: Titanite is a very rare calcium titanium silicate that is an important ore of titanium. It is also c (read full)

Tektites

Tektites: Tektites are glass specimens rich in silica that many believed were actually meteorites. But, the lo (read full)

Taaffeite

Taaffeite: Taaffeite is a very rare beryllium magnesium aluminum mineral. No other mineral has both beryllium a (read full)

Staurolite

Staurolite: Staurolite is a hydrous magnesium aluminum silicate that crystallizes in the monoclinic system. It (read full)

Spodumene

Spodumene: Spodumene is a lithium aluminum silicate that crystallizes in the monoclinic system. It is one of se (read full)

Spinel

Spinel: Spinel is an extensive group of minerals in which magnesium may be replaced with iron, zinc, and a (read full)

Sphalerite

Sphalerite: Sphalerite is a zinc iron sulfide mineral formed in an isometric system. It is trimorphous with wurt (read full)

Spessartine

Spessartine: Spessartine is the manganese-aluminum variety of Garnet, belonging to its sub-group of aluminum garn (read full)

Sodalite

Sodalite: Sodalite is a sodium aluminum silicate chloride in the Sodalite group with an isometric crystal syst (read full)

Smithsonite

Smithsonite: Smithsonite is a mineral in the group of Nitrates, Carbonates, Borates, with a hexagonal crystal sys (read full)

Sinhalite

Sinhalite: Sinhalite is a magnesium aluminum borate, and is most commonly found as transparent honey-yellow to (read full)

Silver

Silver: Silver is a Native Element with an isometric system, a soft, white, precious metallic element of gro (read full)

Sillimanite

Sillimanite: Sillimanite is a grayish-blue aluminum silicate with an orthorhombic crystal system. It is trimorphi (read full)

Shell

Shell: Shell is the hard, protective, outer layer covering of certain creatures found in saltwater or fresh (read full)

Serpentine

Serpentine: Serpentine may refer to a single mineral but more often to a group of minerals including antigorite, (read full)

Schorl Tourmaline

Schorl Tourmaline: Schorl is the black, opaque, sodium iron rich variety of Tourmaline, a complex borosilicate with a (read full)

Scheelite

Scheelite: Scheelite is a mineral in the group of Sulfates, Chromates, Molybdates, Tungstates. It has the same (read full)

Scapolite

Scapolite: Scapolite is a mixed crystal series, a complicated sodium calcium aluminum silicate group composed o (read full)

Sardonyx

Sardonyx: Sardonyx is a gem variety of reddish-brown colored sard with white or black banded chalcedony or ony (read full)

Sard

Sard: Sard is the uniformly colored red-brown or brownish-yellow variety of Chalcedony, which in turn is a (read full)

Sapphire

Sapphire: Sapphire is the blue variety of Corundum. Sapphires can be a very dark blue, to the point of seemin (read full)

Rutile

Rutile: Rutile with anatase and brookite is a trimorph of titanium oxide in the Rutile group.
It forms (read full)

Ruby

Ruby: Ruby is the most valuable variety of Corundum. The color varies from fiery vermilion to violet red, (read full)

Rubellite Tourmaline

Rubellite Tourmaline: Rubellite is the pink to red variety of Tourmaline, which is a complex borosilicate of aluminum and (read full)

Rose Quartz

Rose Quartz: Rose quartz is a usually cloudy, translucent, delicate pale pink, deep pink, rose-red to quasi-white (read full)

Rock Crystal (Quartz)

Rock Crystal (Quartz): Rock Crystal is the purest water-clear and colorless from of Quartz. It is known as mountain crystal (read full)

Rhodonite

Rhodonite: Rhodonite is a silicate of manganese-iron-magnesium, a mineral of the Pyroxene group, with a triclin (read full)

Rhodochrosite

Rhodochrosite: Rhodocrosite is a manganese carbonate, a mineral of the calcite series with a hexagonal crystal syst (read full)

Pyrope

Pyrope: Pyrope is the iron magnesium and aluminum silicate of the pyrope-almandine series in the Pyralspite (read full)

Pyrite

Pyrite: Pyrite is an iron sulphide mineral with a cubic crystal system and is dimorphous with marcasite. It (read full)

Chrysoprase

Chrysoprase: Chrysoprase is a massive, translucent, dull leek-green to yellow-green compact quartz aggregate, a v (read full)

Platinum

Platinum: Platinum is a rare and precious metal that occurs as a Native Element, one of the rarest in the Eart (read full)

Plasma Chalcedony

Plasma Chalcedony: Plasma is a massive, semitransparent, leek to dark green variety of Chalcedony (a microcrystalline v (read full)

Phosphophyllite

Phosphophyllite: Phosphophyllite is a very rare mineral, a hydrated zinc iron manganese phosphate with a monoclinic c (read full)

Phenakite

Phenakite: Phenakite is a rare beryllium silicate with a hexagonal crystal system. It an attractive hard minera (read full)

Petalite

Petalite: Petalite is a lithium aluminum silicate that is an important ore of lithium. This mineral forms, ra (read full)

Peridot

Peridot: Peridot is the greener type of gem-quality specimen of Forsterite-Olivine, which is an important, ro (read full)

Pearl

Pearl: Pearl is one of four main ornamental materials that are classified as "organic" gems, the (read full)

Padparadscha

Padparadscha: Padparadschah is the name given to the orange-yellow sapphire, a gem variety of Corundum. It is also (read full)

Orthoclase

Orthoclase: Orthoclase mineral is a silicate of potassium and aluminum, belonging to the Feldspar group. It has (read full)

Opal

Opal: Opal is hydrated silicon dioxide. It has the same chemical composition as quartz but contains about (read full)

Onyx

Onyx: Onyx is a translucent to semitransparent variety of Agate, which in turn is a variety of Chalcedony (read full)

Oligoclase

Oligoclase: Oligoclase is a mineral of the plagioclase feldspar series, other members of which are Labradorite a (read full)

Obsidian

Obsidian: Obsidian is an extrusive igneous rock, a volcanic glass formed by rapid cooling. Its essential com (read full)

Nephrite

Nephrite: Nephrite is a silicate of calcium, magnesium, and iron, containing fluorine and hydroxyl. It is an a (read full)

Morganite

Morganite: Morganite is a pale red-purple, rose, salmon to purplish red, slightly pink, cesium-bearing variety (read full)

Moonstone

Moonstone: The variety name Moonstone is usually used to describe an optical effect and unlike most variety nam (read full)

Milky Quartz

Milky Quartz: Milky Quartz is a milky white translucent to opaque variety of crystalline quartz of somewhat greasy (read full)

Microcline

Microcline: Microcline is a silicate of potassium and aluminum, and an alkali member of the feldspar group. It i (read full)

Meerschaum

Meerschaum: Meerschaum is a clay-like hydrous magnesium silicate. It has no crystals, and occurs as earthy aggre (read full)

Malachite

Malachite: Malachite is a bright green, basic copper carbonate. It appears as fibrous, radiating aggregates wi (read full)

Lazulite

Lazulite: Lazulite is a compact, pleochroitic mineral which forms a series to scorzalite. It is dichroic, with (read full)

Lapis Lazuli

Lapis Lazuli: Lapis lazuli is composed of several minerals in small quantities - augite, calcite, diopside, mica, (read full)

Labradorite

Labradorite: Labradorite is a sodium-rich plagioclase feldspar which displays a particular type of iridescence on (read full)

Kyanite

Kyanite: Kyanite is an aluminum silicate that occurs as elongated and tabular in groups of light-blue crystal (read full)

Kornerupine

Kornerupine: Kornerupine is a rare magnesium aluminum borate silicate which occurs as transparent prismatic cryst (read full)

Jet Lignite

Jet Lignite: Jet is an organic gem material composed of lignite, and is a bituminous coal which can be polished. (read full)

Jasper Chalcedony

Jasper Chalcedony: Jasper is the opaque form of Chalcedony, the microcrystalline varieties of quartz that form concreti (read full)

Jadeite

Jadeite: Jadeite is a silicate of sodium and aluminum, and is a member of the Clinopyroxene group of minerals (read full)

Ivory

Ivory: Ivory is an organic gem material, largely obtained from the tusks of African and Indian (Asiatic) el (read full)

Iolite

Iolite: Iolite is the violet-colored variety of Cordierite (named after French geologist P. Cordier), a sili (read full)

Indicolite

Indicolite: Indicolite is the blue sodium-rich variety of Tourmaline, and may come in all shades of blue, from l (read full)

Hypersthene

Hypersthene: Hypersthene is an important iron-rich orthopyroxene in the Pyroxene group with an orthorhombic cryst (read full)

Howlite

Howlite: Howlite an opaque, massive mineral used for ornamental and utilitarian articles. is a rarity for col (read full)

Hessonite

Hessonite: Hessonite is the brown-orange variety of Grossular, a nesosilicate in the Garnet group, with an isom (read full)

Hematite

Hematite: Hematite is considered the most important Iron Ore mineral. Its crystals appear as reasonably thick. (read full)

Heliodor Beryl

Heliodor Beryl: Heliodor is a gem variety of Beryl with golden-yellow or light yellow-green color. In many cases hel (read full)

Hauyne

Hauyne: Hauyne is a blue feldspathoid rock-forming mineral, one of four members of the sodalite mineral grou (read full)

Hambergite

Hambergite: Hambergite is a beryllium borate mineral in the classification of Nitrates, Carbonates, and Borates (read full)

Gypsum

Gypsum: Gypsum is the most common sulphate mineral. It is usually the first evaporite mineral to be precipit (read full)

Grossular Garnet

Grossular Garnet: Grossular is a nesosilicate in the Garnet group, with an isometric crystal system. Together with uva (read full)

Goshenite Beryl

Goshenite Beryl: Goshenite is a colorless sodium-rich gem variety of Beryl, a group which includes Emerald and Aquama (read full)

Gold

Gold: Gold is a Native Element that appears in very rare, small, octahedral, cubic, and dodecahedral cryst (read full)

Fluorite

Fluorite: Fluorite is a widely-distributed mineral in the Halide classification, and is now mined in vast quan (read full)

Fire Agate

Fire Agate: Fire Agate is a term applied to much of the variety of chalcedony that occurs as botryoidal, consist (read full)

Euclase

Euclase: Euclase is a silicate with a monoclinic crystal system. It is considered a very rare gem of light bl (read full)

Epidote

Epidote: Epidote is widespread, forms a continuous series of minerals, ending with clinozoisite, which contai (read full)

Enstatite

Enstatite: Enstatite is the most common silicate under the Orthopyroxene group in the larger classification of (read full)

Emerald

Emerald: Emerald is the most prized variety of the mineral Beryl. It sometimes fetches higher prices than dia (read full)

Dumortierite

Dumortierite: Dumortierite is a variety of gemstone of basic aluminum borosilicate with an orthorhombic crystal s (read full)

Dravite

Dravite: Dravite also called Brown Tourmaline is a sodium magnesium-rich mineral in the Tourmaline group of s (read full)

Dolomite

Dolomite: Dolomite is similar to calcite and sits along side it in limestone. It usually occurs as a secondary (read full)

Dioptase

Dioptase: Dioptase is a relatively rare emerald-green mineral, sometimes tinged bluish or blackish. Crystals a (read full)

Diopside

Diopside: Diopside is a type of Clinopyroxene, which are abundant, rock-forming minerals. These are embedded a (read full)

Diamond

Diamond: In fact Diamond is the only gem material comprised of a single chemical element: pure carbon, like g (read full)

Datolite

Datolite: Datolite is a semi rare silicate mineral of the gadolinite group. It appears as surface-growing, sho (read full)

Danburite

Danburite: Danburite is a silicate of clear, prismatic crystals, with wedge-shaped terminations. It is occasion (read full)

Coral

Coral: Corals are the supporting framework of small polyps. Each coral polyp, a tiny marine animal that li (read full)

Citrine

Citrine: Citrine is an attractive type of quartz, which is the commonest mineral on the earth's surface. But (read full)

Chrysoprase

Chrysoprase: Chrysoprase is a variety of chalcedony, usually black or leek-green in color. The most highly-prized (read full)

Chrysocolla

Chrysocolla: Chrysocolla is a silicate that forms as stalactitic masses, in radiating groups, or closely-packed a (read full)

Chrysoberyl

Chrysoberyl: Chrysoberyl appears as prismatic, tabular crystals often v-shaped twins forming pseudo-hexagonal cry (read full)

Chatoyant Quartz

Chatoyant Quartz: When quartz contains similarly-oriented fibrous inclusions, and is then appropriately-cut, in caboch (read full)

Chalcedony

Chalcedony: Chalcedony is a compact form of silica, composed of microscopic quartz crystals. It is softer than q (read full)

Cerussite

Cerussite: Cerussite is a colorless carbonate of the aragonite mineralogical classification. It appears as colo (read full)

Celestine

Celestine: Celestine appears as colorless, or pale blue, and is transparent to translucent, and has two directi (read full)

Cassiterite

Cassiterite: Cassiterite may form as short or slender prismatic, or bipyramidal, elbow-shaped crystals. It has a (read full)

Carnelian

Carnelian: Carnelian is a variety of chalcedony, which is translucent and is red to reddish-brown. It may also (read full)

Calcite

Calcite: Of all minerals, calcite is by far the richest in forms. It appears as rhombohedral, scalenohedral, (read full)

Smoky Quartz

Smoky Quartz: Smoky or Brown Quartz is a commonly occurring quartz mineral that gets it's name from the smoky or c (read full)

Brazilianite

Brazilianite: Brazilianite is a soft and brittle mineral that in general does work very well as a gemstone. It's s (read full)

Bloodstone

Bloodstone: Bloodstone is a member of the Chalcedony group. Why is it called Bloodstone? Well because in polishe (read full)

Beryllonite

Beryllonite: Beryllonite is a clear gem/mineral that gets its name from its high content of beryllium. There are (read full)

Benitoite

Benitoite: Benitoite is a rare gemstone / mineral that fluoresces when lit by black lights. It gets its name fr (read full)

Barite

Barite: Barite also called Baryte or heavy spar is a clear to yellowish to blue mineral that is very soft an (read full)

Azurite

Azurite: Azurite is a gorgeous stone that when polished into a sphere may look very much like the planet eart (read full)

Axinite

Axinite: Axinite is a honey brownish to dark brown gem that is named after the axe head like crystal structur (read full)

Aventurine

Aventurine: Aventurine is a quartz mineral that is most often used to crave ornate animal or spiritual figures. (read full)

Aragonite

Aragonite: Aragonite is made from calcium carbonate and found near sedimentary rocks. Colors include clear (wh (read full)

Aquamarine

Aquamarine: Aquamarine is a form Beryl that is similar in color to sea water. So it varies from green to blue ju (read full)

Apatite

Apatite: Apatite is a gemstone that appears similar to tourmaline in its blue green form. It comes in yellow, (read full)

Anglesite

Anglesite: Anglesite is a very soft gem just slightly harder than gold and silver and as such it does not hold (read full)

Andradite

Andradite: Andradite is a name given to members of the garnet that contain manganese and titanium. The 3 types (read full)

Andalusite

Andalusite: The gem Andalusite is a gemstone composed of Lead Sulphate giving it a yellowish hew with a light ti (read full)

Amethyst

Amethyst: Amethyst is the most coveted stone in the quartz group, and it is sometimes confused with beryl. It (read full)

Amblygonite

Amblygonite: Amblygonite is a not so popular gem whose greek name means crooked. It comes in green, clear, yellow (read full)

Amber

Amber: Amber is one of the few organic gemstones that exist. Amber is made when tree resin is fossilized. M (read full)

Almandine

Almandine: Almandine or Almandite is a member of the Garnet group, and is associated with the planet Pluto. Low (read full)

Albite

Albite: Albite is a member of the feldspar species as is predominantly a white or whitish mineral. A fine Al (read full)

Agate Chalcedony

Agate Chalcedony: Agate Chalcedony differs from other Chalcedony in that it often has distinct banding. In fact some (read full)

Achroite Tourmaline

Achroite Tourmaline: Colorless Tourmaline, also known as white or Achroite Tourmaline is the name given to the clear or c (read full)