Crystals That Start With M
There are 16 crystals, rocks and gemstones in Gemdle that start with the letter M — each with a specimen photo, its Mohs hardness and a quick note on how to spot it. Tap any stone for the full identification guide.
Notable crystals that start with M
- Marble — White.
- Moissanite — Clear, adamantine to metallic lustre, Mohs ~9.5.
- Malachite — Green, adamantine to vitreous; silky if fibrous; dull to earthy if massive lustre, Mohs 3.5–4.
- Magnetite — Black, metallic lustre, Mohs 5.5–6.5.
- Moldavite — Green, vitreous lustre, Mohs 5.5.
- Muscovite — Clear, vitreous, silky, pearly lustre, Mohs 2–2.5 parallel to {001} 4 right angle to {001}.
- Moss Agate — Green, waxy, vitreous, dull, greasy, silky lustre, Mohs 6–7.
- Marcasite — Gold, metallic lustre, Mohs 6–6.5.
All 16 stones beginning with M
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Marble
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Moissanite
Mohs ~9.5
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Malachite
Mohs 3.5–4
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Magnetite
Mohs 5.5–6.5
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Moldavite
Mohs 5.5
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Muscovite
Mohs 2–2.5 parallel to {001} 4 right angle to {001}
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Moss Agate
Mohs 6–7
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Marcasite
Mohs 6–6.5
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Magnesite
Mohs 3.5–4.5
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Microcline
Mohs 6–6.5
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Molybdenite
Mohs 1–1.5
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Moonstone
Mohs 6–6.5
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Morganite
Mohs 7.5 to 8}}
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Mimetite
Mohs 3.5–4
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Milky Quartz
Mohs 7 – lower in impure varieties (defining mineral)
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Mookaite
Mohs 6–7
Frequently asked questions
How many crystals start with the letter M?
Gemdle lists 16 crystals, rocks and gemstones beginning with M, including Marble, Moissanite, Malachite.
What is a well-known crystal that starts with M?
Marble is one of the most searched-for stones beginning with M. Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO3) or dolomite (CaMg(CO3)2) that have recrystallized under the influence of heat and pressure.