Skip to content
Mineralati

Minerals

6323 results

Englishite Locality: Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer County, South Dakota, USA (Locality at mindat.org) Pearly Englishite balls together with some Montgomeryite sprays. Field of view 5 mm. Specimen and photo Leon Hupperichs. Mineral

Englishite

englishite

Formula
K3Na2Ca10Al15(PO4)21(OH)7·26H2O
Mohs
3
Sharp metallic crystals of enneasartorite and hendekasartorite, two extremely rare thallium minerals from the Lengenbach quarry (IMA 2015-074 and IMA 2015-075, respectively, both announced in February 2016) grown on realgar. Both species have been analyzed by EDX by Dr. Topa of the NHM Wien, ref. HG076.Enneasartorite and hendekasartorite are two members of the sartorite group minerals. Mineral

Enneasartorite

enneasartorite

Formula
Tl6Pb32As70S140
Mineral

Enricofrancoite

enricofrancoite

Formula
KNaCaSi4O10
Enstatit (pen for scale) - Mineral collection of Brigham Young University Department of Geology, Provo, Utah. Mineral

Enstatite

enstatite

Formula
Mg2Si2O6
Mohs
5.5
Eosphorite Locality: Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil (Locality at mindat.org) Size: 4.5 x 2.8 x 2.4 cm. A rich carpet of translucent-to-transparent, coffee-colored crystals of eosphorite (Hydrated Manganese Iron Aluminum Phosphate Hydroxide), which came out of the Mauthner collection after being previously in the collection of ROM curator, Ian Nicklin. These little crystals are arranged in pretty bursts richly covering most of one side of the matrix. Old material from the 1960s or 1970s. Mineral

Eosphorite

eosphorite

Formula
Mn²⁺AlPO4(OH)2·H2O
Mohs
5
Ephesite Locality: Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa (Locality at mindat.org) Size: 3.3 x 3.2 x 3.2 cm. Beautiful and lustrous (vitreous to pearly) crystals of the very rare PINK mica, Ephesite. This specimen, from the famous Wessels Mine, has both books (up to 3 mm across!) showing the classic hexagonal cross-section of mica, and elongated crystals (in reality, complete books) also about 3 mm long. The color is so rich on these Ephesites that is actually goes beyond the classic pink into an amazing metallic red, with just a hint of orange for interest. Mineral

Ephesite

ephesite

Formula
LiNaAl2(Al2Si2O10)(OH)2
Epididymite Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada (Locality at mindat.org) A superb and complete reticulated epididymite crystal. 2.5 x 2 x 1 cm Mineral

Epididymite

epididymite

Formula
Na2Be2Si6O15·H2O
Green crystals of epidote up to 2.0 cm in length on matrix (6.0×3.5×3.0 cm) with minor manganaxinite. Found from Canta, Lima, Peru. Mineral

Epidote

epidote

Formula
{Ca2}{Al2Fe³⁺}(Si2O7)(SiO4)O(OH)
Mineral

Epidote-(Sr)

epidote-(Sr)

Formula
CaSr(Al2Fe³⁺)[Si2O7][SiO4]O(OH)
Mineral

Epiebnerite

epiebnerite

Formula
(NH4)Zn(PO4)
Aggregates of colorless prismatic crystals of sergeysmirnovite (1) growing on fluorapatite (2) together with epifanovite (3) and metallic copper (4). The image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Mineral

Epifanovite

epifanovite

Formula
NaCaCu5(PO4)4[AsO2(OH)2]·7H2O
Epistilbite Locality: Jalgaon District, Maharashtra, India (Locality at mindat.org) Size: 5.3 x 4.1 x 2.8 cm. KILLER, gemmy and glassy, tabular and blocky, colorless epistilbite crystals aesthetically set in a vug in basalt matrix on this SUPER specimen from Jalgaon. Epistilbite is much less common than stilbite in India and this is an OUTSTANDING specimen of the species. Much effort and care was taken in trimming the matrix to produce this fine specimen. Mineral

Epistilbite

epistilbite

Formula
Ca3[Si18Al6O48]·16H2O
Colorless platy silky crystals of the very rare niobium mineral epistolite from the type locality in Greenland: Ilímaussaq, Narsaq, Kujalleq. Ex Vandenbroucke Museum collection from Waregem, Belgium. Mineral

Epistolite

epistolite

Formula
(Na☐)Nb2Na3Ti(Si2O7)2O2(OH)2(H2O)4
Cristales aciculares de epsomita - Cueva de la Llave de Calatayud (Zaragoza, España). Mineral

Epsomite

epsomite

Formula
MgSO4·7H2O
Mohs
2
Colour
colorlessness, pink, grey, white
Mineral

Erazoite

erazoite

Formula
Cu4SnS6
Mineral

Ercitite

ercitite

Formula
Na2Mn³⁺(PO4)(OH)2·2H2O
Orange brown acicular crystals of the very rare mineral erdite. The mineral is one of the few sulphides with sodium in its composition known (NaFeS2 · 2H2O), and has only been found in 4 localities worldwide. From: Coyote Peak, Coastal Range, Humboldt County, California, United States of America. Mineral

Erdite

erdite

Formula
NaFeS2·2H2O
Outstanding sharp crystals of the rare borate mineral ericaite from Alto Chapare District, Cochabamba Department, Bolivia. Mineral

Ericaite

ericaite

Formula
Fe²⁺3B7O13Cl
(a) Numerous small brown crystals of thermaerogenite on colourless to white langbeinite with light blue urusovite, iron-black tenorite and minor green ericlaxmanite. Field width: 2.2 mm. (b) Abundant small brown crystals of thermaerogenite on white aphthitalite and iron-black hematite and tenorite. Field width: 3.5 mm. (c) Small brown crystals of thermaerogenite on colourless calciolangbeinite iron-black tenorite, light blue urusovite and green kozyrevskite. Field width: 0.8 mm. Mineral

Ericlaxmanite

ericlaxmanite

Formula
Cu4O(AsO4)2
5.5 x 4.5 x 2.5 cm. Granular massive, red-brown ericssonite and ericssonite-2O (orthoericssonite - barium manganese iron silicates) along with manganoan aegirine are transected by dark pink veinlets composed prismatic aggregates of rhodonite. A classic example of the banded tephroite-rhodonite-manganoan aegirine skarn zone from Langban, Filipstad, Varmland, Sweden the type locality for the two featured species. We're using the long-standing terminology of these two minerals here rather than the currently debated 2M and 2O polytype nomenclature. Ex. Paulo Matioli collection and also has Trinity Mineral Company label. Mineral

Ericssonite

ericssonite
Mineral

Erikapohlite

erikapohlite

Formula
Cu²⁺3(Zn,Cu,Mg)4Ca2(AsO4)6·2H2O
Mineral

Erikjonssonite

erikjonssonite

Formula
(Pb32O21)[(V,Si,Mo,As)O4]4Cl9
Mineral

Eringaite

eringaite

Formula
Ca3Sc2(SiO4)3
Eriochalcite Locality: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia Light green balls of Eriochalcite, field of view 3 mm. Specimen and photo Leon Hupperichs. Mineral

Eriochalcite

eriochalcite

Formula
CuCl2·2H2O