Scarbroite Mineral Data + 
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- 16b.7.8.1 Scarbroite Al5(CO3)(OH)13·5(H2O) P1 or P1 Tri
- V/E.04-10 Scarbroite Al5(CO3)(OH)13·5(H2O) P1 or P1 Tri
- V/E.04-20 Hydroscarbroite Al14(CO3)3(OH)36·n(H2O) Tri
- V/E.04-30 Alumohydrocalcite CaAl2(CO3)2(OH)4·3(H2O) P1 1
- V/E.04-40 Para-alumohydrocalcite CaAl2(CO3)2(OH)4·6(H2O) Tri
General Scarbroite Information |
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 Chemical Formula: |
Al5(CO3)(OH)13·5(H2O) | ||
| Composition: |
Molecular Weight = 506.09 gm | ||
| Aluminum 26.66 % Al 50.37 % Al2O3 | |||
| Hydrogen 4.58 % H 40.94 % H2O | |||
| Carbon 2.37 % C 8.70 % CO2 | |||
| Oxygen 66.39 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Al5(CO3)(OH)13·5(H2O) | ||
| Environment: |
In vertical fissures in sandstone. | ||
| IMA Status: |
Approved IMA 1960 | ||
| Locality: |
South Bay, Scarborough, England. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after the locality. | ||
Scarbroite Image | |||
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Scarbroite Crystallography |
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| Axial Ratios: |
a:b:c =0.668:1:1.7788 | ||
| Cell Dimensions: |
a = 9.94, b = 14.88, c = 26.47, Z = 9; alpha = 98.7°, beta = 96.5°, gamma = 89° V = 3,844.59 Den(Calc)= 1.97 | ||
| Crystal System: |
TriclinicSpace Group: P1 or P1 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 8.64(1), 1.43(0.8), 4.32(0.8), | ||
Physical Properties of Scarbroite |
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| Color: |
White. | ||
| Density: |
1.85 - 2.05, Average = 1.95 | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Habit: |
Platy - Sheet forms (e.g. micas). | ||
| Habit: |
Pseudo Rhombohedral - Crystals show a rhombohedral outline. | ||
| Hardness: |
1-2 - Between Talc and Gypsum | ||
| Streak: |
white | ||
Optical Properties of Scarbroite |
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| Gladstone-Dale: |
CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2584,KPDmeas= 0.261,KC= 0.2618 |
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| Optical Data: |
Biaxial (?), b=1.509 | ||
Calculated Properties of Scarbroite |
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| Electron Density: |
relectron=2.02 gm/cc |
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| Fermion Index |
Fermion Index = 0.00058 Boson Index = 0.99942 |
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| Photoelectric: |
PEScarbroite = 0.92 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Scarbroite is Not Radioactive |
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Scarbroite Classification |
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| Dana Class: |
16b.7.8.1 (16b)Carbonates - Hydroxyl or Halogen | ||
| (16b.7)Dana Type | |||
| (16b.7.8)Dana Group | |||
| Strunz Class: |
V/E.04-10 V - Nitrates, Carbonates and Borates | ||
| V/E - Water-bearing carbonates with unfamiliar anions | |||
| V/E.04 - Scarbroite - Para-alumohydrocalcite series | |||
Other Scarbroite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Scarbroite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 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 -École des Mines de Paris Search for Scarbroite using: Visit our Advertisers for Scarbroite : AA Mineral SpecimensB & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Scarbroite Mineral Data : Ask about Scarbroite here : Print or Cut-and-Paste your Scarbroite Specimen Label here :
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