Hibschite
A variety of Grossular
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About Hibschite
Formula:
Ca3Al2(SiO4)3-x(OH)4x
(x = 0.2-1.5)
Colour:
Usually colourless, pale yellow, may have tints of grey, green to bluish green, also may be smoky grey to black.
Lustre:
Vitreous, Sub-Vitreous
Hardness:
6½
Specific Gravity:
3.06 - 3.25
Crystal System:
Isometric
Name:
Named by Felix Cornu in 1905 for Josef Emanuel Hibsch (March 26, 1852 in Hummel, Bohemia (Böhmen) - November 4, 1940 Vienna (Wien), Austria), geologist with the Landwirtschaftliche Akademie (Academy of Agriculture) at Tetschen (Decin), Bohemia.
A variety of Grossular
A variety of grossular with part of the orthosilicate ions replaced by hydroxide ions. Previously considered by some to be a discrete mineral species itself. The end-member composition is called katoite.
Hibschite is now an informal intermediate composition in the Grossular-Katoite Series.
Igumnovite is similar, with Cl in place of (OH).
A variety of grossular with part of the orthosilicate ions replaced by hydroxide ions. Previously considered by some to be a discrete mineral species itself. The end-member composition is called katoite.
Hibschite is now an informal intermediate composition in the Grossular-Katoite Series.
Igumnovite is similar, with Cl in place of (OH).
Visit gemdat.org for gemological information about Hibschite.
Unique Identifiers
Mindat ID:
1898 (as Hibschite)
1755 (as Grossular)
1755 (as Grossular)
Long-form identifier:
mindat:1:1:1898:8 (as Hibschite)
mindat:1:1:1755:4 (as Grossular)
mindat:1:1:1755:4 (as Grossular)
GUID
(UUID V4):
(UUID V4):
5d3f3fe9-0828-43af-98c5-997d25731c58 (as Hibschite)
a07379a9-1278-4a21-90b3-e93b735862b4 (as Grossular)
a07379a9-1278-4a21-90b3-e93b735862b4 (as Grossular)
Classification of Hibschite
51.4.3d.1
51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Hbs | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Hbs | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185â187 doi:10.2138/am.2010.3371 |
Physical Properties of Hibschite
Vitreous, Sub-Vitreous
Transparency:
Transparent
Colour:
Usually colourless, pale yellow, may have tints of grey, green to bluish green, also may be smoky grey to black.
Comment:
Dark colour may be due to zonation with melanite.
Streak:
White
Hardness:
6½ on Mohs scale
Comment:
May be as hard as 7
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.06 - 3.25 g/cm3 (Measured) 3.28 g/cm3 (Calculated)
Optical Data of Hibschite
Type:
Isotropic
Chemistry of Hibschite
Mindat Formula:
Ca3Al2(SiO4)3-x(OH)4x
(x = 0.2-1.5)
(x = 0.2-1.5)
Common Impurities:
Fe,Mn,Mg,S
Crystallography of Hibschite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Ia3d
Cell Parameters:
a = 12 Å
Unit Cell V:
1,728.00 Ă
Âł (Calculated from Unit Cell)
Z:
8
Morphology:
Crystals are rare, but may be dominantly octahedral. Occasionally dodecahedral.
Comment:
a varies from 11.90 to 12.287
First Recorded Occurrence of Hibschite
General Appearance of First Recorded Material:
Colourless to pale yellow overgrowths on "titaniferous melanite" crystal.
Synonyms of Hibschite
Other Language Names for Hibschite
German:Hibschit
Russian:ĐОбŃĐžŃ
Simplified Chinese:æ°Žéé抎çł
Spanish:Hibschita
Traditional Chinese:æ°ŽéŁé抎çł
Common Associates
Associated Minerals Based on Photo Data:
24 photos of Hibschite associated with Pectolite | NaCa2Si3O8(OH) |
6 photos of Hibschite associated with Fluorite | CaF2 |
5 photos of Hibschite associated with Chantalite | CaAl2(SiO4)(OH)4 |
4 photos of Hibschite associated with Chromite | Fe2+Cr3+2O4 |
3 photos of Hibschite associated with Annite | KFe2+3(AlSi3O10)(OH)2 |
3 photos of Hibschite associated with Calcite | CaCO3 |
3 photos of Hibschite associated with Pyrrhotite | Fe1-xS |
3 photos of Hibschite associated with Grossular | Ca3Al2(SiO4)3 |
2 photos of Hibschite associated with Molybdenite | MoS2 |
2 photos of Hibschite associated with Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(â»4)â»[Si2O7]4[(SiO4)10]O(OH)9 |
Fluorescence of Hibschite
Generally non-fluorescent. One locality (Mosjoen, Nordland, Norway) has distinct orange fluorescence SW UV.
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Hibschite
mindat.org URL:
https://www.mindat.org/min-1898.html
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Please feel free to link to this page.
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References for Hibschite
Localities for Hibschite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Australia | |
| Birch (1999) |
Austria | |
| Kolitsch (2008) |
Canada | |
| Chakhmouradian et al. (2006) |
| SABINA (1968) |
| 166-175. +2 other references |
Czech Republic (FRL) | |
| Ulrych (2000) |
| PauliĆĄ |
France | |
| |
| Pusztaszeri (1969) |
Germany | |
| Wittern (2001) |
| |
| BlaĂ et al. (1999) |
Italy | |
| Russo et al. (2004) |
| NHM collection (was hessonite) |
| Bortolozzi (n.d.) |
| |
| CĂĄmara et al. (2012) |
| Boscardin M. et al. (2011) +1 other reference |
| Zordan A. (2014) |
| Boscardin M. et al. (Vicenza) |
| Boscardin et al. (2004) +2 other references |
Japan | |
| Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan) |
| Excaibur Minerals specimen |
Jordan | |
| Sokol +9 other references |
Middle East | |
Gross (1977) | |
Morocco | |
| S. WeiĂ: Lapis 31 (7/8) |
Norway | |
| Jamtveit et al. (1997) |
Poland | |
| DUBIĆSKA E. et al. (NasĆawice, Lower Silesia, Poland) |
| WĆodyka (2010) |
| WĆodyka (2010) |
Romania | |
| Marincea +4 other references |
| minerals-of-the-carpathians.eu (2008) |
Marincea et al. (2011) | |
| Marincea et al. (2014, September) |
| Marincea +2 other references |
Russia | |
| Cesnokov et al. (1998) |
Cesnokov et al. (1998) | |
| Chakhmouradian et al. (2002) |
| Am Min 90: 1688-1692 +1 other reference |
Slovakia | |
| KodÄra (1986) |
| Zajzon N. et al. (2021) |
South Africa | |
| Cairncross et al. (1995) |
| Cairncross et al. (1995) +1 other reference |
| Cairncross et al. (1995) +1 other reference |
Cairncross et al. (1995) | |
| Cairncross et al. (1995) |
Cairncross et al. (1995) | |
| Cairncross et al. (1995) |
Cairncross et al. (1995) | |
Cairncross et al. (1995) | |
Spain | |
| Calvo (2008) |
Sweden | |
| Holtstam et al. (1999) |
| Nysten (2004) |
USA | |
| Cannon (1975) |
| Cannon (1975) |
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada