Can you name the Mohs hardness scale for minerals?

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Mohs Hardness Scale Quiz

Rating:	Report a mistake
Published: March 27th, 2008
Category: Science
Plays: 53,635

Tags: geology, moh, hardness, scale, mineral

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	Jeremy:	Sep 23rd, 2008 at 19:09 GMT	1 point
	Orthoclase by itself should be acceptable for number 6. Feldspar should be an alternate answer. I've never heard it referred to as "orthoclase feldspar" before.

	AeroE:	Oct 10th, 2008 at 02:21 GMT	3 points
	There are 2 different types of feldspar, plagioclase feldspar and orthoclase feldspar. Both have the same hardness, but orthoclase is more commonly listed on the hardness scale. It does accept just feldspar as an answer.

	lakers22:	Nov 7th, 2008 at 23:27 GMT	7 points
	diamond and talc were easy

	ZacharyTaylor:	Nov 28th, 2008 at 22:57 GMT	0 points
	i wasn't sure of topaz...

	Etheridge2:	Feb 1st, 2009 at 02:19 GMT	0 points
	wow use to know this like the back of my hand

Comment below threshold: show it

	letjustin:	Mar 2nd, 2009 at 23:51 GMT	0 points
	i got 2...

	SlovakOne:	Apr 13th, 2009 at 15:48 GMT	1 point
	Wow! Just one. I have a brief knowlage of six of them, but they are way to different from our naming.

	Jcdizon:	Apr 19th, 2009 at 15:46 GMT	2 points
	Sucks, I remembered just two. The softest and the hardest...

	Colomgirl2:	May 12th, 2009 at 20:51 GMT	1 point
	Me too... Diamond and Talc... Nothing more...

	Aristocrat:	May 23rd, 2009 at 21:50 GMT	-3 points
	Calcium carbonate should be an acceptable answer for 2 >.>

	OscilatingGibbon:	May 29th, 2009 at 10:35 GMT	0 points
	I agree with it just accepting 'orthoclase', it's much more commonly referred to as just that.

	LEE:	Jun 1st, 2009 at 12:31 GMT	1 point
	thank you 7th grade geology. the quiz was easy but fun.

	mjenks:	Jul 15th, 2009 at 20:19 GMT	2 points
	Seriously? Five minutes for this?

	mjenks:	Jul 15th, 2009 at 20:20 GMT	3 points
	Aristocrat: No, because aragonite is also calcium carbonate. It'd be like saying that you could accept buckyballs for diamond.

	SporcleAdmin:	Jul 19th, 2009 at 03:36 GMT	5 points
	We have made a couple of tweaks to this quiz as it was one of our earlier quizzes and needed some updating.

	frenchhen:	Aug 6th, 2009 at 13:43 GMT	2 points
	Here's a helpful mnemonic: "The girls can flirt and other queer things can do". Good luck!

	LavaGirl:	Aug 19th, 2009 at 01:18 GMT	2 points
	@AeroE, there technically 4 feldspars; plagioclase, orthoclase, sanidine & microcline. The last three are polymorphs, i.e. they have the same chemical composition, but are formed at different pressures & temperatures. Their presence in ingenous rocks is useful in narrowing the range of temperature & pressure (a proxy for depth)... as you can guess, I am an igneous petrologist/high temperature geochemist

	tigerschick:	Sep 14th, 2009 at 11:11 GMT	2 points
	Glad I'm not the only one who only got 1 and 10 :o(

	tato58:	Oct 20th, 2009 at 13:20 GMT	1 point
	Nice quiz. I only got three, but that's my fault for a poor memory.

	SexualCamel:	Oct 23rd, 2009 at 07:33 GMT	2 points
	Wow, I can actually remember something from high skool.

	cwrocs220:	Oct 25th, 2009 at 20:03 GMT	1 point
	missed calcite:(

	winstarforu:	Dec 2nd, 2009 at 15:23 GMT	0 points
	I practiced these on paper before I actually took the test. If you memorize the first initial of each one in order from soft to hardness and write them down, then fill in the rest of each one it is pretty easy to memorize, needless to say, I aced this test!

	beth61:	Dec 28th, 2009 at 19:13 GMT	1 point
	@SporcleAdmin: Nice quiz, but the title doesn't ask the question you're trying to ask. Can you name the Mohs hardness scale for minerals? Yeah, it's called Mohs hardness scale for minerals. Suggest changing it to "Can you name the minerals in the Mohs hardness scale?"

	JCampen:	Jan 10th, 2010 at 20:25 GMT	1 point
	Nice quiz as a little bit of revision. Got all of them =)

	weird_people:	Jul 8th, 2010 at 19:56 GMT	-4 points
	WHAT! NO UNOBTAINIUM! YOU HAVE NEVER SEEN AVATAR!!!!!!!!!!!!!!!!!!!!

	blondie15:	Jul 10th, 2010 at 05:07 GMT	1 point
	ugh, i couldn't think of fluorite. also, i chuckle at apatite.

	Vespinito:	Jul 30th, 2010 at 10:28 GMT	1 point
	The Geologist Can Find An Ordinary Quartz (that) Tourists Call Diamond

	ronen_w:	Aug 18th, 2010 at 04:38 GMT	1 point
	I just got talc, gypsum, calcite, fluorite, quartz, and diamond right away and the rest took time to remember

	Sam2000:	Nov 6th, 2010 at 13:49 GMT	2 points
	A geology degree hasn't been wasted on me :-). Just for the record...orthoclase is often referred to as orthoclase feldspar. Although plagioclase and orthoclase are the most common there are actually hundreds of feldspar types (may have exaggerated).

	daHOOK:	Dec 12th, 2010 at 23:25 GMT	1 point
	I heard the mnemonic as "Tall girls..."

	eab21:	Feb 2nd, 2011 at 16:23 GMT	0 points
	Sporcle quizzes. The only time when Earth Science is useful.