The Lily mine in Peru is producing three polymorphs of copper hydroxychloride, Cu2Cl(OH)3, namely atacamite, clinoatacamite, and anatacamite. These specimens are easily the world’s finest known for both clinoatacamite and anatacamite, and they are attractive as well.
Gem green sanidine
This is a gem green sanidine crystal. Mineral ZoneTM obtained this specimen during the Denver 2013 shows. A surface coating of clay disguised its transparency; nevertheless the specimen appears in a Ste. Marie show report in the Mineralogical Record. Following the removal of the clay, professional photography shows its true quality. This is a world class feldspar crystal, from a classic locality but outstanding in its size, and also its curious green color.
This gallery contains minerals from the prolific Sterling mine, Sterling Hill, Sussex County, New Jersey, including adelite, chalcophanite, chlorophoenicite, fluoborite, friedelite, gerstmannite, hauckite, hetaerolite, holdenite, kraisslite, legrandite, mcgovernite, mooreite, parasymplesite, pyroaurite, pyrochroite, sarkinite, sussexite, and zincite.
This gallery features minerals from South African manganese deposits including braunite, brucite, bultfonteinite, caryopilite, charlesite, datolite, diaspore, diegogattaite, ephesite, henritermierite, inesite, jacobsite, kutnohorite, lithiophorite, manganvesuvianite, manjiroite, marshallsussmanite, portlandite, prehnite, sturmanite, sugilite, tephroite, and todorokite.
This gallery features minerals from the Långban mine, a locality famous for exotic lead, manganese and beryllium minerals. Featured minerals include allactite, barylite, berzeliite, brandtite, braunite, bromellite, dixenite, finnemanite, frederikssonite, kentrolite, långbanite, magnussonite, manganosite, margarosanite, molybdophyllite, nadorite, pinakiolite, pyrochroite, quenselite, richterite, roeblingite, sarkinite, swedenborgite, and welshite.
It is New Year’s Eve here in Tucson, and we have posted a gallery of minerals from continental Europe, mostly Germany, including acanthite, armenite, babingtonite, berthierite, congolite, corkite, faujasite, gersdorffite, glaucocerinite, hausmannite, hureaulite, kermesite, laueite, lautite, luneburgite, linnaeite, maucherite, nickelskutterudite, nontronite, picromerite, prehnite, serpierite, strunzite, tyrolite and valentinite.
This gallery highlights minerals from their type localities, including almeidaite (IMA 2013-020), bikitaite, carnallite, chambersite, clinoatacamite, clinoclase, diegogattaite (IMA 2012-096), ferronigerite-2N1S, herbertsmithite, hibonite, kipushite, kobeite-(Y), langite, mackayite, manandonite, matlockite, mcgillite, moschellandsbergite, nadorite, quintinite, rongibbsite (IMA 2010-055), sartorite, senarmontite, and stewartite.