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Sanidine
Sanidine

Rubicline
Rubicline



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Sanidine
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Rubicline

Sanidine and Rubicline

1 Physical
1.1 Mohs Hardness
6
0
1.2 Luster
Vitreous Pearly
Vitreous (Glassy)
1.3 Cleavage
{001} perfect, {010} good
{001}
1.4 Fracture
Uneven Flat surfaces (not cleavage) fractured in an uneven pattern.
Not Available
1.5 Streak
white
Not Available
1.6 Bulk Density
Osmium
2.51
Rank: N/A (Overall)
2.72
Rank: N/A (Overall)
Kurilite
1.7 Tenacity
Brittle
Not Available
2 Chemical
2.1 Formula
2.1.1 Chemical Formula
(K,Na)(Si,Al)4O8
(Rb,K)AlSi3O8
2.1.2 Empirical Formula
K0.75Na0.25AlSi3O8
Rb0.75K0.25AlSi3O8
2.2 Crystal Properties
2.2.1 Crystal System
Monoclinic
Triclinic
2.2.2 Space group
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Triclinic Pinacoidal H-M Symbol ( 1 ) Space Group: P 1
2.2.3 Crystal Habit
Tabular crystals, may be acicular
Not Available
2.2.4 Crystal Class
Prismatic (2/m)
Pinacoidal ( 1 )
2.2.5 Twinning
Carlsbad twinning common
Not Available
2.3 Molecular Weight
Proudite
274.30
Rank: N/A (Overall)
313.11
Rank: N/A (Overall)
Diamond
3 Atomic
3.1 Axial Ratios
a:b:c =0.6588:1:0.5534
a:b:c =0.6771:1:0.5518
3.2 Fermion Index
Maldonite
0.01
Rank: 37 (Overall)
0.01
Rank: 37 (Overall)
Algodonite
3.3 Boson Index
Algodonite
0.99
Rank: N/A (Overall)
0.99
Rank: N/A (Overall)
Urea
3.4 Cell Dimensions
3.4.1 a
Mesolite
8.56
Rank: N/A (Overall)
8.81
Rank: N/A (Overall)
Graphite
3.4.2 b
Liveingite
13.00
Rank: N/A (Overall)
13.01
Rank: N/A (Overall)
Tantalcarbide
3.4.3 c
Taranakite
7.19
Rank: N/A (Overall)
7.18
Rank: N/A (Overall)
Tiettaite
3.4.4 alpha
Nefedovite
Not Available
Rank: N/A (Overall)
90.00 °
Rank: N/A (Overall)
Schneiderhohnite
3.4.5 beta
Catapleiite
116.02 °
Rank: N/A (Overall)
116.00 °
Rank: N/A (Overall)
Harmotome
3.4.6 gamma
Rhonite
Not Available
Rank: N/A (Overall)
88.00 °
Rank: N/A (Overall)
Hemihedrite
4 Optical
4.1 Photoelectric
Natronambulite
2.57 barns/electron
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hartite
4.2 Radioactivity
No Common Minerals Minerals has it !
No Common Minerals Minerals has it !
4.2.1 GRapi
Melanocerite Ce
152.94
Rank: N/A (Overall)
8,449.31
Rank: N/A (Overall)
Abelsonite
4.3 By Intensity
3.26(1), 3.22(0.9), 3.27(0.75
Not Available
4.4 Specific Gravity
Osmium
2.53
Rank: N/A (Overall)
2.81
Rank: N/A (Overall)
Kurilite
4.5 Diaphaneity
Transparent to Translucent
Transparent
4.6 Luminescence
Non-fluorescent.
Not Available
4.7 Birefringence
0
0.007
4.8 Pleochroism
colorless.
Not Available
5 Classification
5.1 Category
Feldspar
Feldspar
5.2 IMA Status
Valid Species (Pre-IMA) 1808
Approved IMA 1998 (Dana # Added)
5.3 Dana Class
76.01.01.02
76.01.01.07
5.4 Strunz Class
09.FA.30
09.FA.30
6 Facts
6.1 Origin
Acid volcanic rocks.
Found in a veinlet of rubidian microcline cutting pollucite in a rare-element-bearing granitic pegmatite. The rubidium dominant analog of microcline.
6.2 Locality
Common world wide occurrences. Link to  MinDat.org Location Data.
San Piero in Campo, Elba, Italy. Link to  MinDat.org Location Data.
6.3 Name Origin
From the Greek sanis little plate and idos to see.
The name reflects its compositional and structural attributes as the rubidium analog of microcline.
6.4 Color
White, Colorless, White, Not Available, Not Available, Reddish white., Colorless to white
Colorless, Not Available
6.5 Name Synonym
Not Available
IMA1996-058
6.6 Uses
Not Available
Not Available

Sanidine and Rubicline 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 Sanidine and Rubicline. The appearance of a mineral is greatly influenced during its formation. Sanidine and Rubicline information will help you understand how these minerals are found in nature. Here you can know all about it. Sanidine mineral belongs to Feldspar and Rubicline belongs to Feldspar. It is also important to know the IMA status of a mineral, for the first mineral IMA status is Valid Species (Pre-IMA) 1808 and for second mineral it is Approved IMA 1998 (Dana # Added). Another important aspect is the minerals strength or hardness, Sanidine has Mohs Hardness between 6 while Rubicline has a hardness of 0.

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