Online Mineral Museum Photographic Archive No. 34980: Staurolite twinned crystals from Fannin County, Georgia.
Very shiny and lustrous Galena specimen. Galena crystals are with very sharp geometry and twinned. The cubes have truncated corners. In good condition – some small nicks and contacts. Bedazzling Galena!
Twinned crystals of beryl
These tan colored, twinned orthoclase crystals exhibit good luster and stepped growth parallel to the vertical axis. These crystals are more elongated than most “baveno” twinned orthoclase. Exceptional for the locality! 8.4 x 4 x 2.9 cm Copyright © Rob Lavinsky & irocks.com
A lustrous, honey-colored twinned Calcite crystal sitting atop a crystalized Sphalerite matrix. From Carthage, Tennessee's Elmwood Mine! #minerals #crystals #geology
Cassiterite (classic locale, gorgeous labels), Horni Slavkov, Karlovy Vari, Czech Republic, small-cabinet, 5.8 x 5.1 2.4 cm, This specimen features an intergrown, mostly twinned cluster of very lustrous, black cassiterite crystals, to 2 cm in length., For sale from The Arkenstone, www.iRocks.com. For more details on this piece and others, visit https://www.irocks.com/minerals/specimen/47142
2.2 Willhendersonite (Hydrated Potassium Calcium Aluminum Silicate) - Willhendersonite, twinned tabular crystals from Bellerberg, Mayen, Eifel, Germany. Field of view 0.8 mm. Collection of Bernd Ternes. © Volker Betz Trellis-like aggregates of tabular crystals less than 1.0 mm across. Common forms are {100}, {010}, and {001}. Physical properties: Cleavage: perfect on {100}, {010}, and {001}. Hardness: 3. D = 2.10 – 2.18 gm/cm3. Luster: vitreous. Streak: white.
Calcite, Elmwood Mine, Carthage, Smith County, Tennessee, USA, cabinet, 14.2 x 14.1 x 7.0 cm, Highlighted by a cognac colored, gemmy, twinned and doubly-terminated calcite crystal, 13.0 cm across, this cluster of calcite crystals has a jackstraw appearance., For sale from The Arkenstone, www.iRocks.com. For more details on this piece and others, visit https://www.irocks.com/minerals/specimen/1245
Masterful black-and-white, natural-light, portrait of the exquisite Heather MacGregor and Tal Profs by Jeff Marano (2022)
Santa Matilde Open Pit, Berja Mines, Las Herrerías, Sierra Almagrera, Almería, Andalusia, Spain - Spectacular specimen from Santa Matilde open pit, where we see several aggregates of twinned arborescent crystals of kongsbergite (a rare variety of silver with 5% mercury) on a limestone matrix. They have a brownish gray color, metallic luster and extraordinary beauty. What a wonderful, rich, interesting and rare piece throughout the world.
marcasite, an iron sulfide mineral that forms pale bronze-yellow orthorhombic crystals, usually twinned to characteristic cockscomb or sheaflike shapes; the names spear pyrites and cockscomb pyrites refer to the shape and colour of these crystals. Radially arranged fibres are also common. Marcasite is found with lead and zinc minerals in metalliferous veins, as at Galena, Ill., U.S., and at Clausthal Zellerfeld and Linnich, Ger. Marcasite, which has the same chemical formula as pyrite (FeS2) but crystallizes in the orthorhombic instead of the isometric system, alters upon weathering to ferrous sulfate and sulfuric acid. For detailed physical properties, see sulfide mineral
Elegant and elongated, this unconventional piece has hopper growth features as well as being spinel twinned and has amazing sharpness for it's large size.
I've made some improvements to the double HEMNES shoe cabinet hack and gave it a cleaner finish where both sections meet.
Ah so that explains it!!
#crystalmarkrt #crystals #crystalhealing #summermarket
If there was a town called apathy then maybe we could twin it with the Orihuela Costa, although if recent indications are anything to go by I doubt that anybody would attend the ceremony. I have lived on the Costa now for a little over 15 years and in that time I have grown accustomed […]
Lions distributed school supplies to students
folllow @sycominerals1 for order please DM
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