Spodumene is a lithium aluminum silicate that crystallizes in the monoclinic system. It is one of several rock-forming minerals in the Pyroxene group,...
Staurolite is a hydrous magnesium aluminum silicate that crystallizes in the monoclinic system. It appears as coarse, dark gold-brown prisms, or some...
Stichtite is a purplish to pink mineral many times found mixed with green serpentine. Its a hydrated magnesium chromium carbonate hydroxide mineral.Wi...
In its raw form, sunstone forms as translucent to transparent crystals with distinct cleavage planes and a vitreous luster. The unpolished specimens d...
Taaffeite is a very rare beryllium magnesium aluminum mineral. No other mineral has both beryllium and magnesium in its composition. It is one of the ...
Tanzanite is something of bluish to violet variety of zoisite, that wasnt discovered until 1967 believe it or not. It was first found in the Mererani ...
Tektites are glass specimens rich in silica that many believed were actually meteorites. But, the locations in which tektites have been found, and the...
Titanite is a very rare calcium titanium silicate that is an important ore of titanium. It is also called Sphene. Its crystals are very rare, brillian...
The transparent, colored crystals, which also have good luster, are widely used as gems. Topaz is a silicate of aluminum containing fluorine and hy...
Tugtupite is a mineral closely related to sodalite and hackmanite, all cyclosilicates whose structural silicate tetrahedrons are arranged in rings. It...
