As crusts on fluorite and quartz; "the latter contains partially corroded galena. The crusts are fine-grained, with angular fragments seen at high magnification, and are partly composed of spherulitic aggregates with a maximum diameter of 10 microns."

The show a radiating internal structure.

EPMA data [wt.%, water by difference, empirical formula based on 24 O atoms pfu]:

CuO 63.9
PbO 7.09
SiO₂ 4.15
SO₃ 0.52
H₂O 24.34

total 100.00

This corresponds to Cu_8.23Pb_0.33Si_0.71S_0.07H_27.67O₂₄.

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Unique IdentifiersHide

Mindat ID:

29127

Long-form identifier:

mindat:1:1:29127:3

GUID
(UUID V4):

e47b44d3-3cfa-43d4-977c-02f886ff0508

Classification of UM2005-31-SiO:CuHHide

IMA status notes:

Unnamed (probably valid)

Approval history:

Unnamed, and probably invalid.

Strunz-mindat (2023):

9.DB.40

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si₂O₆; Pyroxene-related minerals

Physical Properties of UM2005-31-SiO:CuHHide

Lustre:

Vitreous

Transparency:

Translucent

Colour:

bluish green to turquoise

Streak:

bluish green to turquoise

Hardness:

2 on Mohs scale

Comment:

approx.

Cleavage:

None Observed

Density:

3.74 g/cm³ (Calculated)

Optical Data of UM2005-31-SiO:CuHHide

Comments:

negative optical elongation

Chemical Properties of UM2005-31-SiO:CuHHide

Formula:

Cu₁₁(SiO₄)(OH)₁₈ · 9H₂O (?)

Smith & Nickel don't report the formula as an uncertain one; also given as (Cu,Pb)₈(SiO₄)(OH)₁₂^.8H₂O

Elements listed:

Cu, H, O, Si - search for minerals with similar chemistry

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.04 Å	(10)
2.74 Å	(3)
2.50 Å	(0.5)
2.15 Å	(3)
1.89 Å	(1)
1.573 Å	(10)

Comments:

pattern similar to either andradite or a pyrochlore-supergroup species

Synonyms of UM2005-31-SiO:CuHHide

UM2005-31

Unnamed (Cu Silicate)

Related Minerals - Strunz-mindat Grouping Hide

9.DB.05	Balipholite	BaLiMg₂Al₃(Si₂O₆)₂(OH)₄	Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05	Carpholite	Mn²⁺Al₂(Si₂O₆)(OH)₄	Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05	Ferrocarpholite	Fe²⁺Al₂Si₂O₆(OH)₄	Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05	Magnesiocarpholite	MgAl₂Si₂O₆(OH)₄	Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05	Potassiccarpholite	K(Mn²⁺,Li)₂Al₄Si₄O₁₂(OH,F)₈	Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.05	Vanadiocarpholite	Mn²⁺V³⁺Al(Si₂O₆)(OH)₄	Orth. mmm (2/m 2/m 2/m) : Ccca
9.DB.10	Lorenzenite	Na₂Ti₂(Si₂O₆)O₃	Orth. mmm (2/m 2/m 2/m) : Pbcn
9.DB.15	Lintisite	LiNa₃Ti₂(Si₂O₆)₂O₂ · 2H₂O	Mon. 2/m : B2/b
9.DB.15	Punkaruaivite	LiTi₂(HSi₄O₁₂)(OH)₂ · H₂O	Mon. 2/m : B2/b
9.DB.17	Eliseevite	LiNa_1.5Ti₂(H_1.5Si₄O₁₂)O₂ · 2H₂O	Mon. 2/m : B2/b
9.DB.20	Kukisvumite	Na₆ZnTi₄(Si₈O₂₄)O₄ · 4H₂O	Orth. mmm (2/m 2/m 2/m) : Pccn
9.DB.20	Manganokukisvumite	Na₆MnTi₄(Si₈O₂₄)O₄ · 4H₂O	Orth. mmm (2/m 2/m 2/m) : Pccn
9.DB.25	Vinogradovite	Na₄Ti₄(Si₂O₆)₂[(Si,Al)₄O₁₀]O₄ · (H₂O,Na,K)₃	Mon. 2/m : B2/b
9.DB.25	Paravinogradovite	Na_1-2(Ti,Fe³⁺)₄(Si₂O₆)₂(AlSi₃O₁₀)(OH)₄ · H₂O	Tric. 1 : P1
9.DB.30	Nchwaningite	Mn²⁺₂(SiO₃)(OH)₂ · H₂O	Orth. mm2 : Pca2₁
9.DB.35	Plancheite	Cu₈(Si₈O₂₂)(OH)₄ · H₂O	Orth. mmm (2/m 2/m 2/m)
9.DB.40	Shattuckite	Cu₅(Si₂O₆)₂(OH)₂	Orth. mmm (2/m 2/m 2/m)
9.DB.45	Aerinite	(Ca_5.1Na_0.5)(Fe³⁺,Al,Fe²⁺,Mg)₄(Al,Mg)₆[HSi₁₂O₃₆(OH)₁₂][(CO₃)_1.2(H₂O)₁₂]	Trig. 3m : P3c1
9.DB.50	Capranicaite	KCaNaAl₄B₄Si₂O₁₈	Mon. 2/m : P2₁/m

Other InformationHide

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 UM2005-31-SiO:CuHHide

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References for UM2005-31-SiO:CuHHide

Reference List:

Walenta, K., Theye, T. (2005) Ein neues silikatisches Kupfermineral von der Grube Clara im mittleren Schwarzwald. Der Erzgräber, 19 (1) 1-4

Smith, D.G.W., Nickel, E.H. (2007): A System of Codification for Unnamed Minerals: Report of the SubCommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. Can. Mineral.: 45: 983-1055 (2012 Update); http://nrmima.nrm.se (2016)

Localities for UM2005-31-SiO:CuHHide

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

- 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.

Germany

Baden-Württemberg

Freiburg Region

Ortenaukreis

Oberwolfach

ⓘ Clara Mine