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Starovaite

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About StarovaiteHide

Formula:
KCu5O(VO4)3
Colour:
Golden brown to reddish brown
Lustre:
Sub-Metallic
Hardness:
3½ - 4
Specific Gravity:
4.54 (Calculated)
Crystal System:
Triclinic
Name:
After Galina Leonidovna Starova (Галины Леонидовны Старовой) (b. 1946) Russian crystallographer and crystal chemist, associate professor of the Chemical Faculty of St. Petersburg State University, a specialist in single-crystal X-ray diffraction analysis, for her contribution to the crystal chemistry of minerals from the Tolbachik fumaroles.
This page provides mineralogical data about Starovaite.


Classification of StarovaiteHide

Approved
Approval Year:
2011

Physical Properties of StarovaiteHide

Sub-Metallic
Colour:
Golden brown to reddish brown
Streak:
Yellowish brown
Hardness:
3½ - 4 on Mohs scale
Hardness:
VHN20=165 - 195 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None observed
Fracture:
Irregular/Uneven
Density:
4.54 g/cm3 (Calculated)

Optical Data of StarovaiteHide

Type:
Anisotropic
Anisotropism:
Weak
Bireflectance:
Weak
1.5
Reflectivity:
400nmR1=15.8%R2= 14.6%
420nmR1=15.2%R2= 13.8%
440nmR1=14.8%R2= 13.1%
460nmR1=14.4%R2= 12.6%
480nmR1=14.0%R2= 12.3%
500nmR1=13.7%R2= 12.0%
520nmR1=13.5%R2= 11.8%
540nmR1=13.3%R2= 11.6%
560nmR1=13.1%R2= 11.5%
580nmR1=13.0%R2= 11.4%
600nmR1=12.9%R2= 11.4%
620nmR1=12.8%R2= 11.3%
640nmR1=12.7%R2= 11.3%
660nmR1=12.5%R2= 11.2%
680nmR1=12.4%R2= 11.2%
700nmR1=12.3%R2= 11.1%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 15.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Grey with a brownish hue
Internal Reflections:
Distinct red-brown
Pleochroism:
Non-pleochroic

Chemical Properties of StarovaiteHide

Formula:
KCu5O(VO4)3
IMA Formula:
KCu5O(VO4)3

Crystallography of StarovaiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 6.08(4) Å, b = 8.26(5) Å, c = 10.71(6) Å
α = 97.8(1)°, β = 92.4(1)°, γ = 90.4(1)°
Ratio:
a:b:c = 0.736 : 1 : 1.297
Unit Cell V:
532 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.65(32)
8.18(46)
3.047(41)
2.745(47)
2.526(100)
2.322(98)
1.867(25)
1.410(23)

Type Occurrence of StarovaiteHide

General Appearance of Type Material:
Prismatic crystals up to 3 x 6 x 20 µm or divergent long-prismatic crystals up to 1 x 3 x 70 µm. The crystals are combined in sprays, sheaf-like aggregates or crusts up to 0.3 x 0.5 mm overgrowing lammerite.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4196/1
Geological Setting of Type Material:
In the sublimates of a fumarole.
Associated Minerals at Type Locality:

Synonyms of StarovaiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Lammerite3 photos of Starovaite associated with Lammerite on mindat.org.

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.

References for StarovaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Zelenski, M.E.,Yapaskurt, V.O., Polekhovsky, Y.S. and Murashko, M.N. (2012) Starovaite, IMA 2011- 085. CNMNC Newsletter No. 12, February 2012, page 153; Mineralogical Magazine: 76: 151-155.
Pekov, I.V., Zelenski, M.E., Yapaskurt, V.O., Polekhovsky, Y.S. and Murashko, M.N. (2013) Starovaite, KCu5O(VO4)3, a new mineral from fumarole sublimates of the Tolbachik volcano, Kamchatka, Russia. European Journal of Mineralogy: 25: 91-96.

Internet Links for StarovaiteHide

Localities for StarovaiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • Second scoria cone
Pekov, I.V., Zelenski, M.E.,Yapaskurt, V.O., Polekhovsky, Y.S. and Murashko, M.N. (2012): Starovaite, IMA 2011- 085. CNMNC Newsletter No. 12, February 2012, page 153; Mineralogical Magazine, 76, 151-155.
Mineral and/or Locality  
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