Novograblenovite
A valid IMA mineral species
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Prokopiy T. Novograblenov
Formula:
(NH4)MgCl3 · 6H2O
Colour:
Colorless
Lustre:
Vitreous
Hardness:
1 - 2
Specific Gravity:
1.504 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Prokopiy Trifonovich Novograblenov (Прокопий Трифонович Новограбленов) (14 August 1892, Petropavlovsk, Russian Empire – 1 January 1934, Petropavlovsk, USSR), one of the researchers of the Kamchatka Peninsula, a teacher, naturalist, geographer, and geologist, and author of the most important catalogue of volcanoes on the Kamchatka Peninsula.
Type Locality:
Dimorph of:
Unique Identifiers
Mindat ID:
52169
Long-form identifier:
mindat:1:1:52169:7
GUID
(UUID V4):
(UUID V4):
e8f6f4ba-d3d5-4642-ac9b-065b40e83ec0
IMA Classification of Novograblenovite
Approved
Approval year:
2017
First published:
2019
Classification of Novograblenovite
3.BA.15
3 : HALIDES
B : Simple halides, with H2O
A : M:X = 1:1 and 2:3
3 : HALIDES
B : Simple halides, with H2O
A : M:X = 1:1 and 2:3
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Ngb | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Novograblenovite
Vitreous
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Hardness:
1 - 2 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
Not observed
Comment:
Thin needles are flexible, fracture is described as even
Density:
1.504 g/cm3 (Calculated)
Comment:
Calculated from empirical formula
Optical Data of Novograblenovite
Type:
Biaxial (+)
RI values:
nα = 1.469(2) nβ = 1.479(2) nγ = 1.496(2)
2V:
Measured: 80° (10), Calculated: 75.7°
Max Birefringence:
δ = 0.027
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
Very weak, r > v
Pleochroism:
Non-pleochroic
Comments:
c^Z = 40°
Chemistry of Novograblenovite
Mindat Formula:
(NH4)MgCl3 · 6H2O
Crystallography of Novograblenovite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 9.2734(3) Å, b = 9.5176(3) Å, c = 13.2439(4) Å
β = 90.187(2)°
β = 90.187(2)°
Ratio:
a:b:c = 0.974 : 1 : 1.392
Unit Cell V:
1168.91 ų
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.883 Å | (22) |
| 3.825 Å | (26) |
| 3.330 Å | (100) |
| 2.976 Å | (45) |
| 2.353 Å | (29) |
| 2.254 Å | (18) |
| 2.024 Å | (17) |
| 1.997 Å | (25) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45b : [Other oxidized fumarolic minerals] |
Type Occurrence of Novograblenovite
General Appearance of Type Material:
Prismatic, needle-like transparent crystals
Place of Conservation of Type Material:
Collection of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5003/1
Associated Minerals at Type Locality:
Reference:
Okrugin, V.M., Kudaeva, S.S., Karimova, O.V., Yakubovich, O.V., Belakovskiy, D.I., Chukanov, N.V., Zolotarev, A.A., Gurzhiy, V.V., Zinovieva, N.G., Shiryaev, A.A., Kartashov, P.M. (2019) The new mineral novograblenovite, (NH4,K)MgCl3·6H2O from the Tolbachik volcano, Kamchatka, Russia: mineral description and crystal structure. Mineralogical Magazine: 83(2): 223-231.
Other Language Names for Novograblenovite
German:Novograblenovit
Related Minerals - Strunz-mindat Grouping
| 3.BA.05 | Hydrohalite | NaCl · 2H2O |
| 3.BA.10 | Carnallite | KMgCl3 · 6H2O |
| 3.BA.20 | Cryobostryxite | KZnCl3 · 2H2O |
Fluorescence of Novograblenovite
None
Other Information
Thermal Behaviour:
Two-step dehydration at 155 and 193°C and sublimation of NH4Cl at 341°C.
Notes:
Soluble in water, alcohol, and acetone; it dissolves in hydrochloric acid without gas evolution.
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 Novograblenovite
mindat.org URL:
https://www.mindat.org/min-52169.html
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References for Novograblenovite
Localities for Novograblenovite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Okrugin et al. (2019) |
The Moon | |
| Jin et al. (2023) |
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