Clear Crystals

Clear crystals, stones & gemstone names

• Diamond Mohs 10 (defining mineral)
• Clear Quartz Mohs 7 – lower in impure varieties (defining mineral)
• Opal Mohs 5.5–6
• Gypsum Mohs 1.5–2 (defining mineral for 2)
• Agate Mohs 6.5–7
• Moissanite Mohs ~9.5
• Tourmaline Mohs 7.0–7.5
• Topaz Mohs 8 (defining mineral)
• Aquamarine Beryl Mohs 7.5–8.0
• Calcite Mohs 3 (defining mineral)
• Zircon Mohs 7.5
• Fluorite Mohs 4 (defining mineral)
• Labradorite Mohs 6–6.5
• Apatite Mohs 5 (defining mineral)
• Vivianite Mohs 1.5–2
• Sunstone Mohs 6.0–6.5
• Selenite Mohs 2
• Barite Mohs 3–3.5
• Ulexite Mohs 2.5
• Magnesite Mohs 3.5–4.5
• Diopside Mohs 5.5–6.5
• Angelite Mohs 3.5
• Howlite Mohs 3.5
• Prehnite Mohs 6–6.5
• Vesuvianite Mohs 6–7
• Wulfenite Mohs 3
• Apophyllite Mohs 4.5–5
• Stilbite Mohs to 4
• Petalite Mohs 6–6.5
• Axinite Mohs 6.0–7.5
• Danburite Mohs 7 – 7.5
• Moonstone
• Scolecite Mohs 5 to
• Heliodor Mohs 7.5–8.0
• Datolite Mohs 5 to 5.5
• Kunzite Mohs 6.5–7
• Schorl Mohs 7.0–7.5
• Goshenite Mohs 7.5–8.0
• Milky Quartz Mohs 7 – lower in impure varieties (defining mineral)
• Fire Opal Mohs 5.5–6