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16 Mar 06 - 04:16 PM (#1695482) Subject: BS: Atacamite From: HuwG Check Rutley's or Haynes's. |
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16 Mar 06 - 04:20 PM (#1695485) Subject: RE: BS: Atacamite From: Peace Picture of atacamite here. Let me know if you get crap for this thread. |
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16 Mar 06 - 07:10 PM (#1695620) Subject: RE: BS: Atacamite From: The Fooles Troupe I'll give you 2/6! |
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16 Mar 06 - 07:14 PM (#1695624) Subject: RE: BS: Atacamite From: Ebbie OK, is it the blue or the black? |
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16 Mar 06 - 07:15 PM (#1695629) Subject: RE: BS: Atacamite From: Peace Yes, it is. |
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16 Mar 06 - 07:20 PM (#1695631) Subject: RE: BS: Atacamite From: Alba I always thought Atacamite was Green! Isn't it formed by Copper minerals or something..oh heck what do I know..lol Jude |
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16 Mar 06 - 07:53 PM (#1695650) Subject: RE: BS: Atacamite From: Peace PHYSICAL CHARACTERISTICS: Color is dark green. From here. |
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16 Mar 06 - 08:01 PM (#1695657) Subject: RE: BS: Atacamite From: mack/misophist Pretty but too soft to bother cutting. |
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16 Mar 06 - 11:15 PM (#1695795) Subject: RE: BS: Atacamite From: Bee-dubya-ell HuwG, since Peace wanted to know if you get crap for this thread, here ya go: Now you can tell him you did. |
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17 Mar 06 - 06:34 AM (#1695958) Subject: RE: BS: Atacamite From: HuwG Well done all. Transcribed from "Rutley's Elements of Mineralogy", 26th Edition, ed. H. H. Read FRS: ACTINOLITE, Remolinite Comp: Basic chloride of copper, Cu2(OH)3Cl; copper, 59.4 per cent. Crystal System: Orthorhombic. Common Form: Prismatic, crystals not common. Colour: Bright deep green to blackish green. Streak: Apple green Lustre: Adamantine to vitreous; translucent to subtranslucent. Hardness: 3 to 3.5. Specific Gravity: 3.76 Tests: Heated in closed tube, gives off water and forms a grey sublimate; easily soluble in acids; on charcoal, fuses in time to metallic copper, colouring the flame azure-blue (chloride) and forming a brownish and greyish-white deposit on the charcoal which volatizes in the reducing flame, again giving an azure-blue colouration. Occurrence: Occurs in the zone of weathering in some copper lodes, especially when this weathering has been effected under desert conditions; occurs at Botallack Mine, St. Just, Cornwall; Los Remolinos and the Atacama Desert, South America; and Burra Mine, South Australia. |
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17 Mar 06 - 08:10 PM (#1696566) Subject: RE: BS: Atacamite From: Gurney Never seen it before. However, I have heard about atapulgite. Our cats crap in it. |
