0 | TAAFFEITE (Beryllium Magnesium Aluminum Oxide) |
0 | TAINIOLITE (Potassium Lithium Magnesium Silicate Fluoride) |
TALC (Magnesium Silicate Hydroxide) | |
TANTALITE (Iron Manganese Tantalum Niobium Oxide) | |
TANZANITE (gem variety of Zoisite) | |
TARBUTTITE (Zinc Phosphate Hydroxide) | |
0 | |
TEKTITES (Meteoric Silica Glass) | |
TELLURIUM (Te) | |
TENNANTITE (Copper Arsenic Sulfide) | |
TEPHROITE (Manganese Silicate) | |
TETRAHEDRITE (Copper Antimony Sulfide) | |
THAUMASITE (Hydrated Calcium Silicon Carbonate Sulfate Hydroxide) | |
THENARDITE (Sodium Sulfate) | |
THOMSONITE (Hydrated Sodium Calcium Aluminum Silicate) | |
THORITE (Thorium Uranium Silicate) | |
THOROGUMMITE (Thorium Uranium Silicate Hydroxide) | |
0 | TIN (Sn) |
TINAKSITE (Titanium Sodium Potasium Silicate Hydroxide) | |
TINCALCONITE (Hydrated Sodium Borate) | |
TITANIUM (Ti) | |
0 | TITANITE (alternate name for Sphene) |
TOPAZ (Aluminum Silicate Fluoride Hydroxide) | |
TOPAZOLITE (the yellow variety of Andradite Garnet) | |
TORBERNITE (Hydrated Copper Uranyl Phosphate) | |
* | TOURMALINE (Group) |
TREMOLITE (Calcium Magnesium Iron Silicate Hydroxide) | |
TRIDYMITE (Silicon Dioxide) | |
TRIPHYLITE (Lithium Iron Manganese Phosphate) | |
TRONA (Hydrated Sodium Bicarbonate Carbonate) | |
TSAVORITE (variety of Grossular garnet) | |
0 | TSUMCORITE (Hydrated Lead Zinc Iron Arsenate) |
TSUMEBITE (Lead Copper Phosphate Sulfate) | |
TURQUOISE (Hydrated Copper Aluminum Phosphate) | |
TYUYAMUNITE (Hydrated Calcium Uranyl Vanadate) |