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Minerals

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rozenit, pochodzenie Maroko, autor zdjęcia Piotr Menducki Mineral

Rozenite

rozenite

Formula
FeSO4 * 4H2O
Mineral

Rozhdestvenskayaite-(Zn)

rozhdestvenskayaite-(Zn)

Formula
Ag6(Ag4Zn2)Sb4S12S
Sky blue crystals of the the new mineral rruffite (IMA 2009-077) on a contrasting matrix. Rruffite is a Ca-Cu arsenate. Rruffite has only been found in two localities worldwide! From: Jote Mine, Tierra Amarilla, Atacama Region, Chile. Mineral

Rruffite

rruffite

Formula
Ca2Cu(AsO4)2·2H2O
Mineral

Ruarsite

ruarsite

Formula
(Ru,Os)AsS
:Locality: Vasin-Myl'k Mountain, Kola, Russian Federation Size: 2.8 × 1.7 × 0.5 cm Description: Polished chip of a granitoid containing Rb rich microcline and rubicline. Rubicline is the Rb analogue of microcline, (Rb,K)AlSi3O8, ideally RbAlSi3O8, and occurs in granitic pegmatites. Accompanied by pollucite, 'mica' and quartz. Only 4 accepted species contains Rb, and rubicline was the first mineral described with rubidium as an essential constituent. IMA1996-058. Mineral

Rubicline

rubicline

Formula
Rb(AlSi3O8)
Mohs
6
Mineral

Rubinite

rubinite

Formula
Ca3Ti³⁺2Si3O12
The raw form of Ruby crystal without refinement, it's not entirely transparent, also very durable. Gemstone

Ruby

Formula
Al2O3
Mohs
9
Colour
Red
Metallic crystal of the very rare Pb-Bi-Te mineral rucklidgeite on a contrasting white matrix. From: Harrison Gold Mine, Bear Mountain, British Columbia, Canada. Mineral

Rucklidgeite

rucklidgeite

Formula
PbBi2Te4
A Rudabányaitról készült első kép. Mineral

Rudabányaite

rudabányaite
Karwowskiite crystals on the boundary of the sulfide nodule and paralava, BSE images. An = anorthite, Di = diopside, Fap = fluorapatite, Gls = glass, Krw = karwowskiite, Nic = nickelphosphide, Pnl = pentlandite, Rud = rudashevskiite, Tro = troilite, Trd = tridymite, Wo = wollastonite. Mineral

Rudashevskyite

rudashevskyite

Formula
(Fe,Zn)S
Mineral

Rudenkoite

rudenkoite

Formula
Sr3(Al3.5Si3.5)O10(OH,O)8Cl2 * H2O
Mineral

Rudolfhermannite

rudolfhermannite
Ruifrancoite, Meurigite-K Locality: Sapucaia Mine, Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil (Locality at mindat.org) Brown Ruifrancoite spheres together with yellowish-white hairy Meurigite. Field of view 4 mm. Specimen and photo Leon Hupperichs. Mineral

Ruifrancoite

ruifrancoite

Formula
Ca2(☐,Mn)2(Fe³⁺,Mn,Mg)4Be4(PO4)6(OH)6·4H2O
Mineral

Ruitenbergite

ruitenbergite

Formula
Ca9B26O34(OH)24Cl4 * 13H2O
Mineral

Ruizhongite

ruizhongite

Formula
(Ag2◻)Pb3Ge2S8
Ruizite, Calcite Locality: N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa (Locality at mindat.org) Size: 4 x 3.8 x 1.3 cm. A superb specimen of beautiful bladed crystals of the rare silicate Ruizite. The crystals, up to about 2 mm in length, grow in flower-like clusters liberally spread among the gemmy Calcite rhombs. The gemmy Ruizite blades have a deep cinnamon color and excellent luster. Ex. Charlie Key. Mineral

Ruizite

ruizite

Formula
Ca2Mn³⁺2[Si4O11(OH)2](OH)2*2H2O
Mineral

Rumoiite

rumoiite

Formula
AuSn2
Mineral

Rumseyite

rumseyite

Formula
[Pb2OF]Cl
Figure 1. Back-scattered electron image of a polished section of rundqvistite-(Ce) [Run-(Ce)] in association with pectolite [Pct] and quartz [Qz]. Mineral

Rundqvistite-(Ce)

rundqvistite-(Ce)

Formula
Na3(Sr3Ce)[Zn2Si8O24]
Rusakovite Locality: Gold Quarry Mine (Maggie claims), Maggie Creek District, Eureka County, Nevada, USA (Locality at mindat.org) Analysed tiny yellowish brown crystals of Rusakovite. Field of view 2 mm. Specimen and photo Leon Hupperichs. Mineral

Rusakovite

rusakovite

Formula
(Fe³⁺,Al)5(VO4,PO4)2(OH)9 * 3H2O
Figure 3. (A) Macroscopic photo of vein containing rusinovite from the Bellerberg volcano, Caspar quarry; (B) BSE image of rusinovite. Ell—ellestadite, Gh—gehlenite, Hem—hematite, HSi—unidentified secondary Ca-silicates; Lak—lakargiite; Prv—perovskite, Rus—rusinovite. Mineral

Rusinovite

rusinovite

Formula
Ca10(Si2O7)3Cl2
Colour
white
Yellow globular aggregates of the rare wolfram mineral russellite from the famous Clara Mine (Wolfach, Black Forest, Baden-Württemberg, Germany). Mineral

Russellite

russellite

Formula
Bi2WO6
Mineral

Russoite

russoite

Formula
(NH4)ClAs2O3(H2O)0.5
Rustenburgite Locality: Ruighoek Mine, Rustenburg District, Western Bushveld Complex, Northwest Province, South Africa (Locality at mindat.org) From the John Saul collection, a VERY important collection of natives and metallic rarities which has been gradually dispersed over the last 10 years, comes this ugly but important specimen...all his specimens ahve been meticulously ID'd and are guaranteed to be authentic as described 1.5 x 0.8 x 0.7 cm Mineral

Rustenburgite

rustenburgite

Formula
Pt3Sn
Mohs
5