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Rhodizite Mineral Data + |
General Rhodizite Information |
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| (K,Cs)Al4Be4(B,Be)12O28 | |||
| Molecular Weight = 778.83 gm | |||
| Cesium 4.27 % Cs 4.52 % Cs2O | |||
| Potassium 3.77 % K 4.54 % K2O | |||
| Beryllium 8.10 % Be 22.48 % BeO | |||
| Aluminum 13.86 % Al 26.18 % Al2O3 | |||
| Boron 12.49 % B 40.22 % B2O3 | |||
| Oxygen 57.52 % O | |||
| ______ ______ | |||
| 100.00 % 97.95 % = TOTAL OXIDE | |||
| K0.75Cs0.25Al4Be412(B0.75)12(Be0.25)O28 | |||
| Valid Species (Pre-IMA) 1834 | |||
| Sarapulsk and Schaitansk, near Mursinsk, Ural Mountains, Russia. Link to MinDat.org Location Data. | |||
| Named from the Greek "rose-colored" because it tinges the blowpipe flame red. | |||
| ICSD 17018 | |||
| PDF 18-327 | |||
Rhodizite Image | |||
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Rhodizite Crystallography |
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| a = 7.317, Z = 1; V = 391.74 Den(Calc)= 3.30 | |||
| Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: P 43m | |||
| By Intensity(I/Io): 2.983(1), 2.44(0.5), 3.27(0.5), | |||
Physical Properties of Rhodizite |
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| [111] Indistinct, [111] Indistinct, [111] Indistinct | |||
| Colorless, Grayish, Yellow, Yellowish white, White. | |||
| 3.44 | |||
| Transparent to Translucent | |||
| Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | |||
| Crystalline - Coarse - Occurs as well-formed coarse sized crystals. | |||
| 8.5 - Chrysoberyl | |||
| Piezoelectric and pyroelectric. | |||
| Vitreous - Adamantine | |||
| white | |||
Optical Properties of Rhodizite |
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| CI meas= 0.035 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2102,KPDmeas= 0.2016,KC= 0.2089 |
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| Isotropic, n=1.6935. | |||
Calculated Properties of Rhodizite |
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relectron=3.19 gm/cc |
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| Fermion Index = 0.10613 Boson Index = 0.89387 |
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PERhodizite = 17.81 barns/electron |
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| GRapi = 52.60 (Gamma Ray American Petroleum Institute Units) Estimated Radioactivity from Rhodizite |
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Rhodizite Classification |
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| 25.8.2.1 (25)Anhydrous Borates Containing Hydroxyl or Halogen | |||
| (25.8)Dana Type | |||
| (25.8.2)Dana Group | |||
| V/L.02-20 V - Nitrates, Carbonates and Borates | |||
| V/L - Shelly borates with [BO2]1- to [B6O10]2- | |||
| V/L.02 - Hambergite - Rhodizite series | |||
Other Rhodizite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Rhodizite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 - Minerals of Wisconsin 13 -QUT Mineral Atlas 14 - Tradeshop.com - The Rainbow of Gems 15 - WWW-MINCRYST 16 -École des Mines de Paris Search for Rhodizite using: Visit our Advertisers for Rhodizite : Translate Rhodizite Mineral Data : Ask about Rhodizite here : Print or Cut-and-Paste your Rhodizite Specimen Label here :
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