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Botryogen Mineral Data + |
General Botryogen Information |
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| MgFe+++(SO4)2(OH)·7(H2O) | |||
| Molecular Weight = 415.39 gm | |||
| Magnesium 5.85 % Mg 9.70 % MgO | |||
| Iron 13.44 % Fe 19.22 % Fe2O3 | |||
| Hydrogen 3.64 % H 32.53 % H2O | |||
| Sulfur 15.44 % S 38.55 % SO3 | |||
| Oxygen 61.63 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| MgFe3+(SO4)2(OH)·7(H2O) | |||
| Valid Species (Pre-IMA) 1828 | |||
| Link to MinDat.org Location Data. | |||
| From the Greek, botrys, meaning "grape' and genos, meaning "to yield." | |||
| Quetenite | |||
Botryogen Image | |||
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Botryogen Crystallography |
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| a:b:c =0.5885:1:0.3991 | |||
| a = 10.5, b = 17.84, c = 7.12, Z = 4; beta = 100.25° V = 1,312.43 Den(Calc)= 2.10 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | |||
| By Intensity(I/Io): 8.87(1), 2.998(0.8), 6.29(0.6), | |||
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Mouse |
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Physical Properties of Botryogen |
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| [010] Perfect, [110] Poor | |||
| Hyacinth red, Ocher yellow. | |||
| 2 - 2.1, Average = 2.04 | |||
| Transparent to Translucent | |||
| Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | |||
| Botryoidal - "Grape-like" rounded forms (e.g.. malachite). | |||
| Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | |||
| Reniform - "Kidney like" in shape (e.g.. hematite). | |||
| 2 - Gypsum | |||
| None. | |||
| Vitreous (Glassy) | |||
| ochre yellow | |||
Optical Properties of Botryogen |
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| CI meas= -0.023 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2584,KPDmeas= 0.2647,KC= 0.2588 |
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| Biaxial (+), a=1.522, b=1.529, g=1.577, bire=0.0550, 2V(Calc)=44, 2V(Meas)=41. Dispersion none. | |||
| yellow. | |||
| pale red. | |||
| deep orange red. | |||
Calculated Properties of Botryogen |
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relectron=2.15 gm/cc |
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| Fermion Index = 0.01016 Boson Index = 0.98984 |
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PEBotryogen = 4.98 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Botryogen is Not Radioactive |
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Botryogen Classification |
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| 31.9.6.1 (31)Hydrated Sulfates Containing Hydroxyl or Halogen | |||
| (31.9)where (A+ B++) (XO4) Zq·x(H2O) | |||
| (31.9.6)Dana Group | |||
| VI/D.10-10 VI - Sulfates,Chromates,Molybdates and Tungstates | |||
| VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size | |||
| VI/D.10 - Copiapite group, Botryogen - Chaidamuite | |||
Other Botryogen Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | |||
| Links to other databases for Botryogen : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST Search for Botryogen using: Visit our Advertisers for Botryogen : Translate Botryogen Mineral Data : Ask about Botryogen here : Print or Cut-and-Paste your Botryogen Specimen Label here :
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