Ad
related to: lapis lazuli hardness mohs scale for sale craigslist
Search results
Results From The WOW.Com Content Network
It has a Mohs hardness of 5.0 to 5.5 and a specific gravity of 2.4. It is translucent with a refractive index of 1.50. It is fusible at 3.5 on Wolfgang Franz von Kobell's fusibility scale, and soluble in HCl. It commonly contains or is associated with grains of pyrite.
Mohs scale of mineral hardness; Mohs hardness of materials (data page) Vickers hardness test; Brinell scale This page was last edited on ...
Lazulite or Azure spar [6]: 14 is a transparent to semi-opaque, blue mineral that is a phosphate of magnesium, iron, and aluminium, with the chemical formula (Mg,Fe 2+)Al 2 (PO 4) 2 (OH) 2. [3]
Mohs hardness kit, containing one specimen of each mineral on the ten-point hardness scale The Mohs scale ( / m oʊ z / MOHZ ) of mineral hardness is a qualitative ordinal scale , from 1 to 10, characterizing scratch resistance of minerals through the ability of harder material to scratch softer material.
Lapis lazuli (UK: / ˌ l æ p ɪ s ˈ l æ z (j) ʊ l i, ˈ l æ ʒ ʊ-,-ˌ l i /; US: / ˈ l æ z (j) ə l i, ˈ l æ ʒ ə-,-ˌ l i /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.
Mohs scale hardness: 6.0–6.5: Diaphaneity: Transparent to translucent and opaque: Specific gravity: 2.64–2.66: Refractive index: 1.525–1.58: Sunstone is a ...
It has a Mohs hardness of six, a Vickers hardness of 7.7 GPa at a load of 0.98 N, [5] and a specific gravity of 3.25 to 3.55. It is transparent to translucent with indices of refraction of n α =1.663–1.699, n β =1.671–1.705, and n γ =1.693–1.728. The optic angle is 58° to 63°.
It is 2010 now and the 'Absolute Hardness' sticks out as incomplete. It is worse than mentioning a temperature of 620° (Celsius or Fahrenheit your guess). Where Kelvin has something absolute for temperatures, Mohs scale is as much absolute as any other hardness scale. Elegast 15:01, 24 June 2010 (UTC) 2024 now and this is silly.