It s 1 on the mohs scale

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it s 1 on the mohs scale

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Moh's Hardness Scale at LuckyGemstones.com 2: Gypsum: Easily scratched with nail: 1: Talc: Very soft, chalk-like
Volume 19, pages 161-168, 1934 THE "MICROHARDNESS" OF MINERALS COMPRISING THE MOHS SCALE HAROLD C. HODGE 1 and J. HAROLD McKAY, 2 The University of Rochester School of
Talc -- 1   Now you understand. Remember Moh's Hardness Scale -- Just because a ring has a stone in it doesn't mean that it is not vulnerable to scratches.
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On the Mohs scale, a pencil lead has a hardness of 1; a fingernail has hardness 2.5; a copper penny, about 3.5; a is a registered trademark of the Wikimedia Foundation, Inc., a U.S
Mohs Scale of Mineral Hardness. In 1812 1: Talc: Talcum powder. 2: Gypsum: Plaster of paris. Gypsum is formed when seawater evaporates from the Earth’s surface.
Moh's (Mohs) scale, devised typing "Moh's Scale" into Google returned 12,300 results, wheareas searching for "Mohs Scale" produced 91,000 results, so outvoted by a ratio of 7.4:1
The softest, which is talc is giving a number 1 rating. What is interesting about Moh's findings is that the mineral that is directly above the next mineral on the scale will
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1. Talc. Talc is the world's softest mineral and the lowest mineral on the Mohs scale. Talc is a hydrated magnesium sheet silicate which is highly insoluble in water.
Moh's Hardness Scale; Hardness: Mineral: Description: 1: Talc: Fingernail scratches it easily. 2: Gypsum: Fingernail scratches it. 3: Calcite: Copper penny scratches it.
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Moh's scale, devised in 1822 by Friedrich Moh, is still in common use by mineralogists 6: Feldspar: 147 5: Apatite: 137 4: Fluorspar: 64 3: Calcite: 53 2: Gypsum: 12 1: Talc: 3

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