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Minerals

6323 results

Mineral

Henryite

henryite

Formula
Cu4Ag3Te4
Mineral

Henrymeyerite

henrymeyerite
Mineral

Henrysunite

henrysunite

Formula
Na2(C2H3O3)2(H2O)
Hentschelite Dimensions: 4.8 cm × 3.8 cm Locality: Great Australia Mine, Cloncurry, Cloncurry Shire, Queensland, Australia Description: A brown matrix with some massive and small black crystals of Hentschelite. JSS specimen and photo. Mineral

Hentschelite

hentschelite

Mohs
3.5
Very well formed pale yellow long microcrystals of the extremely rare relatively new mineral hephaitosite (IMA 2006-043) in an aesthetic composition. Hephaistosite is a thallium-lead chloride (TlPb2Cl5) only found at La Fossa Crater worldwide (Vulcano Island, Aeolian Islands, Sicily, Italy). Mineral

Hephaistosite

hephaistosite

Formula
TlPb2Cl5
Mineral

Heptasartorite

heptasartorite

Formula
Tl7Pb22As55S108
Herbertsmithite, Wulfenite Locality: Kali Kafi Mine (Kale Kafi Mine), Anarak District, Esfahan Province (Isfahan Province; Aspadana Province), Iran Small greenish blue crystals of herbertsmithite. Field of view 4mm. Specimen and photo Leon Hupperichs. Mineral

Herbertsmithite

herbertsmithite

Formula
Cu3Zn(OH)6Cl2
Hercynite (Image width: 5 mm) Locality: In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany Mineral

Hercynite

hercynite

Formula
Fe²⁺Al2O4
Herderite Locality: Linópolis, Divino das Laranjeiras, Doce valley, Minas Gerais, Southeast Region, Brazil (Locality at mindat.org) Size: miniature, 6 x 4.6 x 1.2 cm Herderite A VERY sharp, unusually bladed herderite crystal that is translucent around the edges and has a very sharp, narrowed, twin plane as you see in teh second photo. Interesting crystallography for the species, especially from this locale known more for short, fat herderites. Mineral

Herderite

herderite

Formula
CaBePO4(F,OH)
Mineral

Hereroite

hereroite

Formula
[Pb32(O,☐)21](AsO4)2[(Si,As,V,Mo]O4)2Cl10
Mineral

Hermannjahnite

hermannjahnite

Formula
CuZn(SO4)2
Mineral

Hermannroseite

hermannroseite

Formula
CaCu(PO4)(OH)
Massive metallic herzenbergite (a tin sulphide) specimen without matrix. Slag mineral, from Zinnhalde, Vientiane Prefecture, Lao (formerly Laos). Mineral

Herzenbergite

herzenbergite

Formula
SnS
Colour
black
Hessite Locality: Botés, Alba County, Romania (Locality at mindat.org) Size: miniature, 3.5 x 2.5 x 1.2 cm Hessite An exceptional miniature with robust, spiky hessite crystals shooting out from a common core. This is classic type locality material, now hard to come by in good specimens! It is from the American Museum of Natural History in NYC, and note the early accession number #831, dating it to the 1800's. Anyways, most were mined by 1900, as well. With sharp crystals to nearly 1 cm, this is a choice example for the sizer and price range. The piece also has its original patina, and is not cleaned with acid, as you can tell by the associated calcite crystals in crevasses. Ex Lawrence Conklin collection, obtained in trade from the American Museum of Natural History. You can see it displays either horizontally or vertically Mineral

Hessite

hessite

Formula
Ag2Te
Hetaerolite, Copper Locality: Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise County, Arizona, USA (Locality at mindat.org) Size: 4.5 x 2.2 x 1.0 cm. Hetaerolite is a rare zinc, manganese oxide. Rust-brown, bubbly hetaerolite totally coats a copper leaf. Ex. Dave Stoudt Collection. Mineral

Hetaerolite

hetaerolite

Formula
ZnMn³⁺2O4
Mohs
6
Heterogenite, Chrysocolla Locality: L'Etoile du Congo Mine (Star of the Congo Mine; Kalukuluku Mine), Lubumbashi (Elizabethville), Southern area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) (Locality at mindat.org) Size: 13.3 x 10.0 x 3.3 cm. A really good specimen from this relatively recent find of warty-looking (in an attractive way!) black heterogenite, bubbled up richly upon a crust of bright blue chrysocolla. Ex. Charlie Key Collection. Mineral

Heterogenite

heterogenite

Formula
Co³⁺O(OH)
Heteromorphite - Locality: Felsöbanya, Siebenbürgen - Exposed in the Mineralogical Museum, Bonn, Germany Mineral

Heteromorphite

heteromorphite

Formula
Pb7Sb8S19
Heterosite (size: 3.5" x 2.5" x 1.5") Locality: Newry, Oxford County, Maine, USA original description: Seriously purple old collection specimen of heterosite (labeled pupurite) from Newry, Maine. Mineral

Heterosite

heterosite

Formula
Fe³⁺(PO4)
Mineral

Heulandite-Ba

heulandite-Ba

Formula
(Ba,Ca,K)5(Si27Al9)O72 * 22H2O
Heulandite-Ca, Quartz Locality: Nasik District, Maharashtra, India (Locality at mindat.org) Size: cabinet, 9.4 x 6.9 x 4.2 cm Heulandite on Chalcedony A visually dramatic piece featuring a 4 cm salmon/red-colored Heulandite that has great luster and superb gemminess for the species. The color is unusually intense. The large Heulandite rests in a forest of very fine Chalcedony "straws," which helps create the incredible aesthetics of the piece. The several smaller Heulandites add accents to the piece. Truly wonderful specimen with unique aesthetics. Mineral

Heulandite-Ca

heulandite-Ca

Formula
(Ca,Na)5(Si27Al9)O72 * 26H2O
Mineral

Heulandite-K

heulandite-K

Formula
(K,Ca,Na)5(Si27Al9)O72 · 26H2O
Heulandite-Ca, Natroapophyllite Locality: Nasik District, Maharashtra, India (Locality at mindat.org) Size: cabinet, 11.9 x 9.9 x 4.8 cm Apophyllite with Heulandite Zeolites and associated mineral species abound in the thick, basaltic, traprocks of India. But it is still exciting to see well formed minerals in combination from these deposits, and I buy special pieces when something is really unique such as the form and intense color of this apophyllite. In this natural basaltic vug we have a well formed, lustrous, translucent, emerald green fluorapophyllite crystal, 2.5 cm in length, surrounded by lustrous, cream colored heulandite crystals which reach 2 cm in length. Mineral

Heulandite-Na

heulandite-Na

Formula
(Na,Ca,K)6(Si,Al)36O72 · 22H2O
Mineral

Heulandite-Sr

heulandite-Sr

Formula
(Sr,Na,Ca)5(Si27Al9)O72 · 24H2O
Hewettite Locality: Vanadium Queen Mine, La Sal Creek Canyon, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA Field of view 4 mm. Specimen and photo Leon Hupperichs. My thanks to Joe Marty for this nice exchange specimen. Mineral

Hewettite

hewettite

Formula
CaV⁵⁺6O16·9H2O