Oracle
What is the Mohs hardness of talc? Answer with the whole number only.
Answer
1
- scale
- Mohs hardness scale, where talc is the reference mineral defining hardness 1 (softest end)
- sources
- , en.wikipedia.org, encyclopaedia britannica, 'mohs hardness' / 'talc': talc is mineral hardness 1 on the mohs scale, home.nps.gov, mindat.org mineral data for talc (mohs hardness 1); consistent with usgs and standard mineralogy references defining talc as the softest mineral on the mohs scale, mindat.org mineral database entry for talc (mohs hardness 1) and usgs mineral resources glossary, which both list talc as the reference mineral defining hardness 1 on the mohs scale, mindat.org mineral reference for talc (mohs hardness: 1); corroborated by usgs mineral resources glossary listing talc as the mohs scale hardness-1 reference mineral, mohs hardness scale (1812), standard mineralogy reference: talc is mineral #1 of 10 in the scale, mohs hardness scale (1812), standard mineralogy reference: talc is the defining mineral for hardness value 1, the softest on the ten-point scale., mohs hardness scale (1812), standard reference scale: talc is mineral #1 of 10 (talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, diamond), mohs hardness scale (1812), talc defined as hardness 1, the softest reference mineral; consistent with usgs mineral property references, mohs hardness scale (1812, friedrich mohs) — talc is the defining mineral for hardness 1, the softest of the ten reference minerals, mohs hardness scale (1812, friedrich mohs) — talc is the scale's defining reference mineral at hardness 1, the softest of the ten reference minerals; widely confirmed by usgs and standard mineralogy references (e.g., mindat, encyclopaedia britannica)., mohs hardness scale (defined 1824 by friedrich mohs) fixes talc as hardness 1 of 10, the standard reference mineral used to define the softest point on the scale, mohs hardness scale (defined by friedrich mohs, 1812): talc is mineral #1 of the 10-mineral reference scale, used as the standard for hardness 1; this is standard mineralogy/geology reference knowledge (e.g. usgs and encyclopedia britannica entries on the mohs scale), mohs hardness scale (defining reference minerals): talc is mineral #1, the softest reference mineral on the scale, as per the original 1812 mohs scale definition used by usgs and mineralogy references (e.g. usgs mineral resources glossary, encyclopedia britannica entry on mohs scale), mohs hardness scale (geology reference): talc is mineral #1, the softest reference point, mohs hardness scale (geology reference): talc is the defining mineral for hardness 1, the softest of the ten reference minerals (talc=1, gypsum=2, calcite=3, fluorite=4, apatite=5, orthoclase feldspar=6, quartz=7, topaz=8, corundum=9, diamond=10)., mohs hardness scale (geology reference, e.g. usgs/encyclopedia britannica): talc is the index mineral for hardness 1 on the 10-point mohs scale, mohs hardness scale (standard mineralogy reference): talc = 1, the softest mineral on the 1-10 scale, mohs hardness scale (standard mineralogy reference): talc defines hardness 1, the softest end of the 1-10 scale, mohs hardness scale (standard mineralogy reference): talc is mineral #1 of 10, the softest reference mineral, mohs hardness scale (standard mineralogy reference): talc is the defining mineral at hardness 1, mohs hardness scale (standard mineralogy reference): talc is the defining mineral at hardness 1, the softest end of the scale., mohs hardness scale (standard mineralogy reference): talc is the defining mineral at hardness 1, the softest reference mineral on the ten-point mohs scale., mohs hardness scale (standard mineralogy reference): talc is the defining mineral for hardness 1, the softest on the scale., mohs hardness scale (standard mineralogy reference): talc is the reference mineral for hardness 1, the softest endpoint of the 1-10 scale, mohs hardness scale (standard mineralogy reference, e.g. encyclopaedia britannica / usgs mineral hardness tables): talc is the defining mineral at mohs hardness 1, mohs hardness scale (standard mineralogy reference, e.g. usgs and encyclopaedia britannica): talc is defined as hardness 1, the softest reference mineral on the scale., mohs hardness scale (standard mineralogy reference, e.g. usgs mineral hardness chart): talc = 1, mohs hardness scale (standard mineralogy reference, e.g. usgs mineral hardness scale and encyclopaedia britannica): talc is defined as hardness 1, the softest reference mineral on the 10-point scale devised by friedrich mohs in 1812., mohs hardness scale (standard mineralogy reference, e.g. usgs mineral resources): talc defines hardness 1, the softest mineral on the scale, mohs hardness scale (standard mineralogy reference, e.g. usgs/britannica): talc defines hardness 1, the softest point on the 1-10 scale, mohs hardness scale (standard mineralogy reference, e.g. usgs/britannica): talc is the index mineral for hardness 1, the softest on the 1-10 scale, mohs hardness scale (standard mineralogy reference, e.g. usgs/encyclopedia britannica): talc is mineral #1 on the 10-point scale, mohs hardness scale (standard mineralogy reference; talc is the defining mineral at hardness 1, e.g. usgs mineral hardness scale), mohs hardness scale (talc is the defining mineral at value 1 of 10), as given in standard mineralogy references (e.g., usgs mineral hardness scale), mohs hardness scale (talc is the official reference mineral for hardness 1; e.g. usgs mineral resources program and encyclopaedia britannica entries on the mohs scale), mohs hardness scale defines talc as the reference mineral for hardness 1 (the softest of the ten index minerals), as given in standard mineralogy references (e.g., usgs mineral hardness scale, encyclopaedia britannica entry on the mohs scale)., mohs hardness scale definition (mindat/usgs mineralogy references): talc defines hardness value 1 on the 1-10 mohs scale, mohs hardness scale definition: talc is the index mineral for hardness 1 (softest), as defined by friedrich mohs in 1812 and used universally in mineralogy references (e.g., usgs, encyclopaedia britannica)., mohs hardness scale definition: talc is the reference mineral for hardness 1 (softest), as defined by friedrich mohs in 1812 and used in standard mineralogy references (e.g., usgs mineral hardness scale)., mohs hardness scale reference (e.g. usgs mineral hardness scale), where talc is the defining mineral for hardness value 1, mohs hardness scale reference (talc is the scale's defining mineral at hardness 1), mohs hardness scale reference tables (e.g. usgs mineral hardness scale, encyclopaedia britannica 'mohs hardness' entry) list talc as hardness 1, the defining mineral for that point on the scale., mohs hardness scale reference: talc is the defining mineral at hardness 1 (softest), as used in standard mineralogy/geology references (e.g. usgs mineral hardness scale)., mohs hardness scale: talc is the reference mineral for hardness 1 (softest), per standard geology/mineralogy references (e.g. usgs mineral hardness scale)., mohs scale of mineral hardness (standard geology reference): talc is the defining mineral for hardness 1, the softest point on the 1-10 scale., mohs scale of mineral hardness (standard mineralogy reference): talc defines hardness 1, the softest end of the 1-10 scale, pubs.usgs.gov, usgs mineral hardness reference / mohs scale definition: talc is hardness 1 of 10, usgs mineral resources - talc (https://www.usgs.gov/centers/national-minerals-information-center/talc-and-pyrophyllite-statistics-and-information) and encyclopaedia britannica entry on the mohs hardness scale, both state talc is the reference mineral for hardness 1 on the mohs scale, usgs mineral resources / mohs scale of mineral hardness: talc = 1 (softest), diamond = 10 (hardest), usgs mineral resources program / encyclopaedia britannica: talc is the reference mineral defining hardness 1 on the mohs scale, the softest of the ten index minerals, usgs mineral resources program / encyclopaedia britannica: talc is the reference mineral for hardness 1 on the mohs scale, the softest of the ten index minerals, usgs mineral resources program / standard mineralogy references (e.g. encyclopaedia britannica, mindat.org) list talc as the index mineral for hardness 1 on the mohs scale, usgs mineral resources program and standard mineralogy references (e.g. encyclopaedia britannica) list talc as the mohs scale's defining hardness-1 mineral, usgs mineral resources program, mohs hardness scale reference (talc = 1, diamond = 10), usgs mohs hardness scale reference (talc is the defining mineral for hardness 1 on the mohs scale), uwaterloo.ca, wikipedia "talc" infobox (https://en.wikipedia.org/wiki/talc): mohs scale "1 (defining mineral)"; mindat mineral 3875 (https://www.mindat.org/min-3875.html), www.nps.gov, www.usgs.gov
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#12701Mohs hardness scale (standard mineralogy reference): talc defines hardness 1, the softest end of the 1-10 scale
#15641from home.nps.gov
#671from en.wikipedia.org
#10701from home.nps.gov
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