Unnamed (Ca-analogue of Humite)
Invalid as an unnamed mineral
This page is currently not sponsored. Click here to sponsor this page.
Unique Identifiers
Mindat ID:
39698
Long-form identifier:
mindat:1:1:39698:5
GUID
(UUID V4):
(UUID V4):
499883d8-eb5b-49e6-9b19-89ba470bb5c5
Classification of Unnamed (Ca-analogue of Humite)
IMA status notes:
Unnamed (probably invalid)
Approval history:
Unnamed, and probably invalid.
9.AF.50
9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
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
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
Chemical Properties of Unnamed (Ca-analogue of Humite)
Formula:
Ca7(SiO4)4F2
Elements listed:
Crystallography of Unnamed (Ca-analogue of Humite)
Crystal System:
Orthorhombic
Class (H-M):
mmm (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
Unit Cell V:
1360.92 ų
Z:
4
Comment:
Space group: Pbnm
Relationship of Unnamed (Ca-analogue of Humite) to other Species
Member of:
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 Grouping
9.AF. | Chegemite | Ca7(SiO4)3(OH)2 | Orth. mmm (2/m 2/m 2/m) |
9.AF. | Barwoodite | Mn2+6Nb5+(SiO4)2O3(OH)3 | Trig. 3 : P3 |
9.AF. | Jingwenite-(Y) | YAlV4+(SiO4)O2(OH)2 | Mon. 2/m |
9.AF.05 | Sillimanite | Al2(SiO4)O | Orth. mmm (2/m 2/m 2/m) |
9.AF.05 | Xenolite | Al10Si8O31 | |
9.AF.10 | Andalusite | Al2(SiO4)O | Orth. mmm (2/m 2/m 2/m) : Pnnm |
9.AF.10 | Kanonaite | Mn3+Al(SiO4)O | Orth. mmm (2/m 2/m 2/m) : Pnnm |
9.AF.15 | Kyanite | Al2(SiO4)O | Tric. 1 : P1 |
9.AF.20 | Mullite | Al4+2xSi2-2xO10-x | Orth. mmm (2/m 2/m 2/m) : Pbam |
9.AF.20 | Krieselite | Al2(GeO4)F2 | Orth. mmm (2/m 2/m 2/m) : Pnma |
9.AF.23 | Boromullite | Al9BSi2O19 | Orth. mm2 : Cmc21 |
9.AF.25 | Yoderite | Mg(Al,Fe3+)3(SiO4)2O(OH) | Mon. 2/m : P21/m |
9.AF.30 | Magnesiostaurolite | Mg(Mg,Li)3(Al,Mg)18Si8O44(OH)4 | Mon. 2/m : B2/m |
9.AF.30 | Staurolite | Fe2+2Al9Si4O23(OH) | Mon. 2/m : B2/m |
9.AF.30 | Zincostaurolite | Zn2Al9Si4O23(OH) | Mon. 2/m : B2/m |
9.AF.35 | Topaz | Al2(SiO4)(F,OH)2 | Orth. mmm (2/m 2/m 2/m) |
9.AF.40 | Norbergite | Mg3(SiO4)F2 | Orth. mmm (2/m 2/m 2/m) |
9.AF.45 | Alleghanyite | Mn2+5(SiO4)2(OH)2 | Mon. 2/m : P21/b |
9.AF.45 | Chondrodite | Mg5(SiO4)2F2 | Mon. 2/m : P21/b |
9.AF.45 | Reinhardbraunsite | Ca5(SiO4)2(OH,F)2 | Mon. 2/m : P21/b |
9.AF.45 | Kumtyubeite | Ca5(SiO4)2F2 | Mon. 2/m : P21/b |
9.AF.45 | Hydroxylchondrodite | Mg5(SiO4)2(OH)2 | Mon. 2/m : P21/b |
9.AF.50 | Humite | Mg7(SiO4)3F2 | Orth. mmm (2/m 2/m 2/m) : Pnma |
9.AF.50 | Manganhumite | (Mn2+,Mg)7(SiO4)3(OH)2 | Orth. mmm (2/m 2/m 2/m) |
9.AF.50 | Fluorchegemite | Ca7(SiO4)3F2 | Orth. mmm (2/m 2/m 2/m) |
9.AF.50 | Unnamed (OH-analogue of humite) | Mg7(SiO4)3(OH)2 | Orth. |
9.AF.55 | Clinohumite | Mg9(SiO4)4F2 | Mon. 2/m : P21/b |
9.AF.55 | Sonolite | Mn2+9(SiO4)4(OH)2 | Mon. 2/m : P21/b |
9.AF.55 | Hydroxylclinohumite | Mg9(SiO4)4(OH)2 | Mon. 2/m : P21/b |
9.AF.60 | Leucophoenicite | Mn2+7(SiO4)3(OH)2 | Mon. 2/m : P21/b |
9.AF.65 | Ribbeite | Mn2+5(SiO4)2(OH)2 | Orth. mmm (2/m 2/m 2/m) |
9.AF.70 | Jerrygibbsite | Mn2+9(SiO4)4(OH)2 | Orth. mmm (2/m 2/m 2/m) : Pbcn |
9.AF.75 | Franciscanite | Mn2+6(V5+,◻)2(SiO4)2(O,OH)6 | Trig. 3 : P3 |
9.AF.75 | Örebroite | Mn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3 | Trig. 3 : P3 |
9.AF.75 | Welinite | Mn2+6(W6+,Mg)2(SiO4)2(O,OH)6 | Trig. 3 : P3 |
9.AF.75 | Scorticoite | Mn6(Sb,◻)Σ2(SiO4)2O3(OH)3 | Trig. 3 : P3 |
9.AF.80 | Ellenbergerite | Mg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10 | Hex. 6 : P63 |
9.AF.85 | Chloritoid | (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2 | Mon. 2/m : B2/b |
9.AF.85 | Magnesiochloritoid | MgAl2(SiO4)O(OH)2 | Mon. 2/m : B2/b |
9.AF.85 | Ottrélite | (Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2 | Mon. |
9.AF.90 | Poldervaartite | CaCa[SiO3(OH)](OH) | Orth. mmm (2/m 2/m 2/m) : Pbca |
9.AF.90 | Olmiite | CaMn2+[SiO3(OH)](OH) | Orth. mmm (2/m 2/m 2/m) : Pbca |
9.AF.95 | Pilawite-(Y) | Ca2Y2Al4(SiO4)4O2(OH)2 | Mon. 2/m : P21/b |
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.
References for Unnamed (Ca-analogue of Humite)
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Galuskin, E.V. et al. (2008): New calcium analogues of humite-group minerals: a polysomatic comparison. RMS DPI 2008, 47-48.
Galuskina, I.O., et al. (2009) Kumtyubeite Ca5(SiO4)2F2 - a new calcium mineral of the humite group from Northern Caucasus, Kabardino-Balkaria, Russia. American Mineralogist 94, 1361-1370.
Internet Links for Unnamed (Ca-analogue of Humite)
mindat.org URL:
https://www.mindat.org/min-39698.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
Localities for Unnamed (Ca-analogue of Humite)
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Russia | |
| Am.Min. 94,1361(2009) |