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A DEFINITIVE GEOLOGICAL RECORD. CATALOGING SPECIMENS ACROSS THE WORLD'S MOST SOUGHT-AFTER FAMILIES.

Saffordite

TEKTITE MOHS 6–7

Sapphire

CORUNDUM MOHS 9

Blue Sapphire

CORUNDUM MOHS 9

Sardonyx

CHALCEDONY (QUARTZ) MOHS 6.5–7

Scapolite

TECTOSILICATE MOHS 5.5–6

Scheelite

TUNGSTATE MOHS 4.5–5

Scolecite

ZEOLITE MOHS 5–5.5

Selenite

GYPSUM MOHS 2

Peach Selenite

GYPSUM MOHS 2

Septarian

CALCITE NODULE MOHS 3–4

Seraphinite

CHLORITE MOHS 2–2.5

Serpentine

SERPENTINE GROUP MOHS 2.5–4

Bowenite

SERPENTINE GROUP MOHS 5.5

Shattuckite

COPPER SILICATE MOHS 3.5–4

Shiva Lingam

QUARTZ MOHS 6.5–7

Shungite

CARBON MOHS 3.5–4

Elite Shungite

CARBON MOHS 3.5–4

Smithsonite

CARBONATE MOHS 4–4.5

Smoky Quartz

QUARTZ MOHS 7

Sodalite

FELDSPATHOID MOHS 5.5–6

Specular Hematite

OXIDE MINERALS MOHS 5–6

Sphalerite

SULFIDE MINERALS MOHS 3.5–4

Spinel

OXIDE MINERALS MOHS 7.5–8

Red Spinel

OXIDE MINERALS MOHS 7.5–8

Spirit Quartz

QUARTZ MOHS 7

Staurolite

SILICATE MINERALS MOHS 7–7.5

Stibnite

SULFIDE MOHS 2

Stilbite

ZEOLITES MOHS 3.5–4

Stromatolite

SEDIMENTARY FOSSIL STRUCTURES MOHS 3–4

Sugilite

CYCLOSILICATES MOHS 5.5–6.5

Sunstone

FELDSPAR MOHS 6–6.5

Super Seven

QUARTZ MOHS 7

Super Seven Melody Stone

QUARTZ MOHS 7

Tanzanite

ZOISITE MOHS 6–7

Tektite

NATURAL IMPACT GLASS MOHS 5–6

Thulite

ZOISITE MOHS 6–6.5

Tibetan Quartz

QUARTZ MOHS 7

Tiger Iron

QUARTZ COMPOSITE MOHS 6.5–7

Tiger’s Eye

QUARTZ MOHS 6.5–7

Red Tiger’s Eye

QUARTZ MOHS 6.5–7

Titanite

TITANITE MOHS 5–5.5

Topaz

TOPAZ MOHS 8

Imperial Topaz

TOPAZ MOHS 8

Tourmalinated Quartz

QUARTZ MOHS 7

Tourmaline

CYCLOSILICATE MOHS 7–7.5

Black Tourmaline

TOURMALINE MOHS 7–7.5

Blue Tourmaline

TOURMALINE MOHS 7–7.5

Green Tourmaline

TOURMALINE MOHS 7–7.5
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