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Calciobetafite
Calciobetafite

Geikielite
Geikielite



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Calciobetafite
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Geikielite

Calciobetafite and Geikielite

1 Physical
1.1 Mohs Hardness
4.5-5.5
6
1.2 Luster
Resinous
Sub Metallic
1.3 Cleavage
Not Available
Good on {10 1 1}
1.4 Fracture
Conchoidal Uneven Uneven fracture producing small
Conchoidal Fractures developed in brittle materials characterized by smoothly curving surfaces
1.5 Streak
Not Available
Purplish brown
1.6 Bulk Density
Osmium
4.42
Rank: N/A (Overall)
3.66
Rank: 100 (Overall)
Kurilite
1.7 Tenacity
Not Available
Not Available
2 Chemical
2.1 Formula
2.1.1 Chemical Formula
Ca2(Ti,Nb)2(O,OH)7
MgTiO3
2.1.2 Empirical Formula
Ca1.5REE0.2Th0.1U0.1Nb1.2Ti0.8Fe2+0.1O6(OH)0.3F0.1
MgTiO3
2.2 Crystal Properties
2.2.1 Crystal System
Isometric Hexoctahedral H-M Symbol
Trigonal
2.2.2 Space group
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Trigonal Rhombohedral H-M Symbol ( 3 ) Space Group: R 3
2.2.3 Crystal Habit
Not Available
Tabular prismatic crystals, also as finely granular masses
2.2.4 Crystal Class
Not Available
Rhombohedral ( 3 )
2.2.5 Twinning
Not Available
Not Available
2.3 Molecular Weight
Proudite
394.30
Rank: N/A (Overall)
120.18
Rank: 100 (Overall)
Diamond
3 Atomic
3.1 Axial Ratios
Not Available
a:c = 1:2.77093
3.2 Fermion Index
Maldonite
0.02
Rank: 36 (Overall)
0.07
Rank: 31 (Overall)
Algodonite
3.3 Boson Index
Algodonite
0.98
Rank: N/A (Overall)
0.93
Rank: 100 (Overall)
Urea
3.4 Cell Dimensions
3.4.1 a
Mesolite
10.30
Rank: N/A (Overall)
5.09
Rank: 100 (Overall)
Graphite
3.4.2 b
Liveingite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Tantalcarbide
3.4.3 c
Taranakite
Not Available
Rank: N/A (Overall)
14.09
Rank: 100 (Overall)
Tiettaite
3.4.4 alpha
Nefedovite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Schneiderhohnite
3.4.5 beta
Catapleiite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Harmotome
3.4.6 gamma
Rhonite
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Hemihedrite
4 Optical
4.1 Photoelectric
Natronambulite
Not Available
Rank: N/A (Overall)
7.03 barns/electron
Rank: 100 (Overall)
Hartite
4.2 Radioactivity
No Common Minerals Minerals has it !
No Common Minerals Minerals has it !
4.2.1 GRapi
Melanocerite Ce
1,697.80
Rank: N/A (Overall)
0.00
Rank: 100 (Overall)
Abelsonite
4.3 By Intensity
2.973(1), 1.82(0.53), 1.552(0.45
2.722(1), 2.218(0.7), 2.527(0.55
4.4 Specific Gravity
Osmium
4.80
Rank: N/A (Overall)
3.79
Rank: 100 (Overall)
Kurilite
4.5 Diaphaneity
Subtranslucent
Opaque to translucent
4.6 Luminescence
Not Available
Not Available
4.7 Birefringence
0
0.360-0.370
4.8 Pleochroism
Not Available
Weak
5 Classification
5.1 Category
Oxide minerals
Oxide minerals
5.2 IMA Status
Approved IMA 1983
Valid Species (Pre-IMA) 1892
5.3 Dana Class
08.02.03.05
04.03.05.02
5.4 Strunz Class
04.DH.15
04.CB.05
6 Facts
6.1 Origin
In a subvolcanic rock, locally termed sanidinite, present in a phreatomagmatic explosion breccia.
Forms during contact metamorphism of impure magnesian limestones. Also in carbonatites, kimberlites, and serpentinized ultramafic rocks. Forms a series with ilmenite.
6.2 Locality
From Monte di Procida, Campi Flegrei, near Naples, Campania, Italy. Link to  MinDat.org Location Data.
Gem gravels of the Rakwana and Balanoda districts, Sri Lanka. Link to  MinDat.org Location Data.
6.3 Name Origin
For the mineral with the betafite structure and the CALCIum content.
Named for Sir Archibald Geikie (1835-1924), Scottish geologist and Director-General of the Geological Survey of Great Brition.
6.4 Color
Brown, Reddish brown.
Black, Red, Not Available, Brownish black., Black, Not Available
6.5 Name Synonym
ICSD 31196
ICSD 65794
6.6 Uses
Not Available
Not Available

Calciobetafite and Geikielite Information

Minerals are solid substances, occurring naturally. Minerals are not organic compounds as their origins are inorganic. Interestingly, the process of formation of minerals do result from organic processes. The way in which the minerals are formed affects the Calciobetafite and Geikielite. The appearance of a mineral is greatly influenced during its formation. Calciobetafite and Geikielite information will help you understand how these minerals are found in nature. Here you can know all about it. Calciobetafite mineral belongs to Oxide minerals and Geikielite belongs to Oxide minerals. It is also important to know the IMA status of a mineral, for the first mineral IMA status is Approved IMA 1983 and for second mineral it is Valid Species (Pre-IMA) 1892. Another important aspect is the minerals strength or hardness, Calciobetafite has Mohs Hardness between 4.5-5.5 while Geikielite has a hardness of 6.

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