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Quartz v. Amethyst. Goboboseb Mountains, Brandberg District, Namibia; This doubly terminated, royal purple amethyst scepter is stunning.  The hefty size sets it apart from the hundreds of smaller scepters that Goboboseb abundantly produced.  The rich royal purple color and pristine condition make this a crystal worthy of consideration by the most discerning collector. This and more rare mineral specimens for sale on CuratorsEye.com

Quartz v. Amethyst. Goboboseb Mountains, Brandberg District, Namibia; This doubly terminated, royal purple amethyst scepter is stunning. The hefty size sets it apart from the hundreds of smaller scepters that Goboboseb abundantly produced. The rich royal purple color and pristine condition make this a crystal worthy of consideration by the most discerning collector. This and more rare mineral specimens for sale on CuratorsEye.com

Bariopharmacosiderite ~ Clara Mine, Wolfach, Black Forest, Baden-Württemberg, Germany

e-Rocks Mineral Auctions - Fine Minerals & Mineral Specimens for sale

Smithsonite ~ Jean Baptiste Mine, Lavrion, Attica, Greece Formula: ZnCO3 Strunz: 5.AB.05 Hardness: 4.0 - 4.5 Streak: White

Smithsonite ~ Jean Baptiste Mine, Lavrion, Attica, Greece Formula: ZnCO3 Strunz: 5.AB.05 Hardness: 4.0 - 4.5 Streak: White

Dioptasa. Altin-Tube. Kazakhstan.  Cristal de 1,76mm de ancho  EOS 600D, Nikon BD Plan 5x at 3x zoom. 1,6s TV, ISO 200, Carril MacroRail (MacroRail.com)

FMF - Friends of Minerals Forum, discussion and message board :: View topic - My modest collection of minerals / micro photos .

Really neat specimen of triangular shaped Elbaite Tourmaline Barra de Salinas, Brazil

Rockhound Revival

Butterfly Shaped Adamite - yellow-green Adamite crystals with remnants of brown Limonite gossan.

Laumontite, CaAl2Si4O12∙4H2O, quickly turns white and crumbles in air. Its spiky crystals are distinctive, too. Sometimes found in slate and schist.

Definition and Examples of Index Minerals

Laumontite (Hydrated Calcium Aluminum Silicate) - Laumontite, quickly turns white and crumbles in air. Its spiky crystals are distinctive, too. Sometimes found in slate and schist.

Reversible GemSilica or Druzy Chrysocolla /  Ray Mine, Arizona

Reversible GemSilica or Druzy Chrysocolla / Ray Mine, Arizona. photo by Terry Williams

Elbaite ~ Malkhan Pegmatite Field, Krasnyi Chikoy, Eastern Siberia, Russian Federation Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) Strunz: 9.CK.05 Hardness: 7.5 Streak: White

Elbaite ~ Malkhan Pegmatite Field, Krasnyi Chikoy, Eastern Siberia, Russian Federation Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) Strunz: 9.CK.05 Hardness: 7.5 Streak: White

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