Unnamed (Ca-analogue of Humite) (original) (raw)
Invalid as an unnamed mineral
Crystal System:
Orthorhombic
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:39698:5
499883d8-eb5b-49e6-9b19-89ba470bb5c5
IMA Classification of Unnamed (Ca-analogue of Humite)Hide
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IMA status notes:
Unnamed (probably invalid)
Approval history:
Unnamed, and probably invalid.
Classification of Unnamed (Ca-analogue of Humite)Hide
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9.AF.50
9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
52.3.4.5
52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
3 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Chemistry of Unnamed (Ca-analogue of Humite)Hide
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Mindat Formula:
Ca7(SiO4)4F2
Crystallography of Unnamed (Ca-analogue of Humite)Hide
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Crystal System:
Orthorhombic
Class (H-M):
m m m _(_2/_m_2/_m_2/m ) - Dipyramidal
Cell Parameters:
a = 5.0696(1) Å, b = 11.3955(1) Å, c = 23.5571(3) Å
Ratio:
a:b:c = 0.445 : 1 : 2.067
Comment:
Space group: Pbnm
Relationship of Unnamed (Ca-analogue of Humite) to other SpeciesHide
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Other Members of this group:
| Chegemite Subgroup | Ca2nSinO4n · Ca(OH,F)2, n = 2,3,4 |
|---|---|
| Humite Subgroup | n[Mg2(SiO4)] · Mg(OH,F)2 with n = 1, 2, 3, or 4 |
| Leucophoenicite Subgroup | The leucophoenicite Subgroup minerals are unit cell-twinned polymorphs of the corresponding humite-group minerals. |
| Manganhumite Subgroup | Mn2nSinO4n · Mn(OH,F)2, n = 2,3,4 |
Related Minerals - Strunz-mindat GroupingHide
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| 9.AF. | Chegemite | Ca7(SiO4)3(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
|---|---|---|---|
| 9.AF. | Jingwenite-(Y) | YAlV4+(SiO4)O2(OH)2 | Mon. 2/m |
| 9.AF. | Barwoodite | Mn2+6Nb5+(SiO4)2O3(OH)3 | Trig. 3 : _P_3 |
| 9.AF.05 | Sillimanite | Al2(SiO4)O | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.AF.05 | Xenolite | Al10Si8O31 | |
| 9.AF.10 | Kanonaite | Mn3+Al(SiO4)O | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 9.AF.10 | Andalusite | Al2(SiO4)O | Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m |
| 9.AF.15 | Kyanite | Al2(SiO4)O | Tric. 1 : _P_1 |
| 9.AF.20 | Krieselite | Al2(GeO4)F2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 9.AF.20 | Mullite | Al4+2xSi2-2xO10-x | Orth. m m m _(_2/_m_2/_m_2/m ) : P b a m |
| 9.AF.23 | Boromullite | Al9BSi2O19 | Orth. m _m_2 : C m _c_21 |
| 9.AF.25 | Yoderite | Mg(Al,Fe3+)3(SiO4)2O(OH) | Mon. 2/m : _P_21/m |
| 9.AF.30 | Zincostaurolite | Zn2Al9Si4O23(OH) | Mon. 2/m : _B_2/m |
| 9.AF.30 | Staurolite | Fe2+2Al9Si4O23(OH) | Mon. 2/m : _B_2/m |
| 9.AF.30 | Magnesiostaurolite | Mg(Mg,Li)3(Al,Mg)18Si8O44(OH)4 | Mon. 2/m : _B_2/m |
| 9.AF.35 | Topaz | Al2(SiO4)(F,OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.AF.40 | Norbergite | Mg3(SiO4)F2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.AF.45 | Chondrodite | Mg5(SiO4)2F2 | Mon. 2/m : _P_21/b |
| 9.AF.45 | Kumtyubeite | Ca5(SiO4)2F2 | Mon. 2/m : _P_21/b |
| 9.AF.45 | Reinhardbraunsite | Ca5(SiO4)2(OH,F)2 | Mon. 2/m : _P_21/b |
| 9.AF.45 | Hydroxylchondrodite | Mg5(SiO4)2(OH)2 | Mon. 2/m : _P_21/b |
| 9.AF.45 | Alleghanyite | Mn2+5(SiO4)2(OH)2 | Mon. 2/m : _P_21/b |
| 9.AF.50 | Humite | Mg7(SiO4)3F2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 9.AF.50 | Manganhumite | (Mn2+,Mg)7(SiO4)3(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.AF.50 | Unnamed (OH-analogue of humite) | Mg7(SiO4)3(OH)2 | Orth. |
| 9.AF.50 | Fluorchegemite | Ca7(SiO4)3F2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.AF.55 | Hydroxylclinohumite | Mg9(SiO4)4(OH)2 | Mon. 2/m : _P_21/b |
| 9.AF.55 | Clinohumite | Mg9(SiO4)4F2 | Mon. 2/m : _P_21/b |
| 9.AF.55 | Sonolite | Mn2+9(SiO4)4(OH)2 | Mon. 2/m : _P_21/b |
| 9.AF.60 | Leucophoenicite | Mn2+7(SiO4)3(OH)2 | Mon. 2/m : _P_21/b |
| 9.AF.65 | Ribbeite | Mn2+5(SiO4)2(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 9.AF.70 | Jerrygibbsite | Mn2+9(SiO4)4(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n |
| 9.AF.75 | Franciscanite | Mn2+6(V5+,◻)2(SiO4)2(O,OH)6 | Trig. 3 : _P_3 |
| 9.AF.75 | Scorticoite | Mn6(Sb,◻)Σ2(SiO4)2O3(OH)3 | Trig. 3 : _P_3 |
| 9.AF.75 | Welinite | Mn2+6(W6+,Mg)2(SiO4)2(O,OH)6 | Trig. 3 : _P_3 |
| 9.AF.75 | Örebroite | Mn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3 | Trig. 3 : _P_3 |
| 9.AF.80 | Ellenbergerite | Mg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10 | Hex. 6 : _P_63 |
| 9.AF.85 | Magnesiochloritoid | MgAl2O(SiO4)(OH)2 | Mon. 2/m : _B_2/b |
| 9.AF.85 | Ottrélite | Mn2+Al2O(SiO4)(OH)2 | Mon. |
| 9.AF.85 | Chloritoid | Fe2+Al2O(SiO4)(OH)2 | Mon. 2/m : _B_2/b |
| 9.AF.90 | Olmiite | CaMn2+[SiO3(OH)](OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 9.AF.90 | Poldervaartite | CaCa[SiO3(OH)](OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 9.AF.95 | Pilawite-(Y) | Ca2Y2Al4(SiO4)4O2(OH)2 | Mon. 2/m : _P_21/b |
Other InformationHide
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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 Unnamed (Ca-analogue of Humite)Hide
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References for Unnamed (Ca-analogue of Humite)Hide
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Localities for Unnamed (Ca-analogue of Humite)Hide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
| Russia | |
|---|---|
| Kabardino-Balkaria Chegemsky District Upper Chegem volcanic caldera (Verkhnechegemskaya caldera) ⓘ Lakargi Mountain | Am.Min. 94 (2009) |