UM1996-38-SiO:AlCaHNa

Valid as an unnamed mineral

This page is currently not sponsored. Click here to sponsor this page.

Discuss UM1996-38-SiO:AlCaHNa

Edit UM1996-38-SiO:AlCaHNa Add Synonym Edit CIF structures Clear Cache

Formula:

Na-Ca-Al-Si-O-H

The mean analysis (England, 1996) recast (Ł.K.) leads to (Na,Ca)_~1(Si_2.5Al_1.5)_Σ4O₈·~9H₂O (5 cations basis) or (Na,Ca)₂(Si_5.5Al_3.5)_Σ9O₁₈·19H₂O (11 cations basis) or (Na,Ca)₃(Si₈Al₅)_Σ13O_~26·28H₂O (16 cations basis).

Member of:

Zeolite Group

Found as "flexible, ribbon-like filaments up to 10 microns wide"; often over 1 cm long, "randomly draped over thomsonite and chabazite"; in vesicles of a Tertiary basalt.

Electron microprobe data (EDS, wt%, 5 analyses):

SiO₂ 44.0-53.1
Al₂O₃ 23.0-28.1
CaO 8.3-8.9
Na₂O 4.4-7.7

total 80.0-97.3

Si:(Si+Al) = 0.62 (constant)

Si/Al = 1.61-1.63

Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:

54072

Long-form identifier:

mindat:1:1:54072:6

Similar NamesHide

UM1967-09-SiO:AlHKNa		(K,Na)AlSi₂O₆ · H₂O
UM1976-25-SiO:AlKNa		(K,Na)AlSi₅O₁₂
UM1987-18-SiO:AlCaHKNa		(K,Ca,Na)₇(Si₁₇Al₇)O₄₈ · 14H₂O (?)
UM1997-//-SiO:AlCaHNa[1]		Na₂CaAl₄Si₄O₁₆ · nH₂O
UM1997-//-SiO:AlCaHNa[2]		Na₂Ca₄Si₄O₁₅(OH)₄
UM1999-33-SiO:AlHKNa		K₇Na₅Al₁₂Si₂₀O₆₄ · 24H₂O
UM2004-47-SiO:AlCaNa		(Na,Ca)(Si,Al)₆O₁₁

IMA Classification of UM1996-38-SiO:AlCaHNaHide

IMA status notes:

Unnamed (probably valid)

Chemistry of UM1996-38-SiO:AlCaHNaHide

Mindat Formula:

Na-Ca-Al-Si-O-H

The mean analysis (England, 1996) recast (Ł.K.) leads to (Na,Ca)_~1(Si_2.5Al_1.5)_Σ4O₈·~9H₂O (5 cations basis) or (Na,Ca)₂(Si_5.5Al_3.5)_Σ9O₁₈·19H₂O (11 cations basis) or (Na,Ca)₃(Si₈Al₅)_Σ13O_~26·28H₂O (16 cations basis).

Element Weights:

Element	% weight
Ca	29.656 %
Si	20.782 %
Al	19.965 %
Na	17.012 %
O	11.839 %
H	0.746 %

Calculated from ideal end-member formula.

Elements listed:

Al, Ca, H, Na, O, Si - search for minerals with similar chemistry

Relationship of UM1996-38-SiO:AlCaHNa to other SpeciesHide

Member of:

Zeolite Group

Other Members of Zeolite Group:

Alflarsenite	NaCa₂Be₃Si₄O₁₃(OH) · 2H₂O	Mon. 2 : P2₁
Amicite	K₂Na₂Al₄Si₄O₁₆ · 5H₂O	Mon. 2
Ammonioleucite	(NH₄)(AlSi₂O₆)	Tet. 4/m : I4₁/a
Analcime	Na(AlSi₂O₆) · H₂O	Tric. 1 : P1
Arzamastsevite	K₆Al₅Si₆O₂₀(OH)₄Cl	Tet. 4 2m : I4 2m
Bellbergite	(K,Ba,Sr)₂Sr₂Ca₂(Ca,Na)₄[Al₃Si₃O₁₂]₆ · 30H₂O	Hex.
Bikitaite	LiAlSi₂O₆ · H₂O	Tric. 1 : P1
Boggsite	Ca₈Na₃(Si,Al)₉₆O₁₉₂ · 70H₂O	Orth. mmm (2/m 2/m 2/m) : Imma
Brewsterite Subgroup	Zeolite Group.
Chabazite-Levyne Subgroup	M[Al₂Si₄O₁₂] · 6H₂O
Chiavennite	CaMnBe₂Si₅O₁₃(OH)₂ · 2H₂O	Mon. 2/m : P2₁/b
Clinoptilolite Subgroup	(Na/Ca/K)_3-6[Al_6-7Si_29-30O₇₂] · 20H₂O
Cowlesite	CaAl₂Si₃O₁₀ · 6H₂O	Orth. mmm (2/m 2/m 2/m)
Dachiardite Subgroup	Zeolite Group.
Direnzoite	NaK₆MgCa₂(Al₁₃Si₄₇O₁₂₀) · 36H₂O	Orth. mmm (2/m 2/m 2/m) : Pmmn
Edingtonite	Ba[Al₂Si₃O₁₀] · 4H₂O	Orth. 2 2 2 : P2₁ 2₁ 2₁
Epistilbite	CaAl₂Si₆O₁₆ · 5H₂O	Mon.
Erionite Subgroup	M₂[Al₄Si₁₄O₃₆] · 15H₂O
Fabrièsite	Na₃Al₃Si₃O₁₂ · 2H₂O	Orth. mm2 : Pmm2
Faujasite Subgroup	M_3.5[Al₇Si₁₇O₄₈] · 32H₂O
Ferrierite Subgroup	Name used for unanalysed specimens that could be either ferrierite-K,