White Gemstones

Mainly white stones & crystals

• Silver Mohs 2.5–3
• Snowflake Obsidian Mohs 5–6
• Clear Quartz Mohs 7 – lower in impure varieties (defining mineral)
• Limestone
• Opal Mohs 5.5–6
• Borax Mohs 2–2.5
• Granite
• Pearl Mohs 2.5–4.5
• Gypsum Mohs 1.5–2 (defining mineral for 2)
• Marble
• Agate Mohs 6.5–7
• Talc Mohs 1 (defining mineral)
• Calcite Mohs 3 (defining mineral)
• Pumice
• Chalcedony Mohs 6–7
• Travertine
• Soapstone
• Chert
• Halite Mohs 2.0–2.5
• Dolomite Mohs 3.5–4.0
• Aragonite Mohs 3.5–4
• Muscovite Mohs 2–2.5 parallel to {001} 4 right angle to {001}
• Selenite Mohs 2
• Chrysotile Mohs 2.5–3
• Barite Mohs 3–3.5
• Celestine Mohs 3.0–3.5
• Moss Agate Mohs 6–7
• Orthoclase Mohs 6 (defining mineral)
• Tremolite Mohs 5–6
• Ulexite Mohs 2.5
• Scheelite Mohs 4.5–5
• Wollastonite Mohs 4.5 to 5.0
• Magnesite Mohs 3.5–4.5
• Albite Mohs 6–6.5
• Microcline Mohs 6–6.5
• Arsenopyrite Mohs 5.5–6
• Sillimanite Mohs 7
• Howlite Mohs 3.5
• Blue Lace Agate Mohs 6.5–7
• Sardonyx Mohs 6.5–7
• Apophyllite Mohs 4.5–5
• Cerussite Mohs 3 to 3.5
• Nepheline Mohs 6
• Brucite Mohs 2.5 to 3
• Analcime Mohs 5–5.5
• Scapolite Mohs 5.5–6
• Stilbite Mohs to 4
• Phenakite Mohs 7.5–8
• Petalite Mohs 6–6.5
• Pollucite Mohs 6.5 to 7
• Natrolite Mohs 5–6
• Leucite Mohs 5.5–6
• Anglesite Mohs 2.5–3.0
• Danburite Mohs 7 – 7.5
• Colemanite Mohs 4.5
• Pectolite Mohs 4.5 – 5
• Moonstone Mohs 6–6.5
• Oligoclase Mohs 6 to 6.5
• Scolecite Mohs 5 to
• Thomsonite Mohs 5–
• Amblygonite Mohs 5.5–6
• Heulandite Mohs 3.5–4
• Chabazite Mohs 4-5
• Datolite Mohs 5 to 5.5
• Okenite Mohs –5
• Goshenite Mohs 7.5–8.0
• Milky Quartz Mohs 7 – lower in impure varieties (defining mineral)

Stones that also occur in white

These minerals are best known in other colours but are also found in white — so a white specimen is possible, though the photo here may show a different shade. Confirm the colour of the actual stone, not just the species.

• Diamond Mohs 10 (defining mineral)
• Topaz Mohs 8 (defining mineral)