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Chromio-pargasite

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Photos of Chromio-pargasite (3)

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Chromio-pargasite

Higashi-Akaishi dunite, Ehime prefecture, Japan

Chromio-pargasite

Akaishi mine, Doi, Shikokuchuo City, Ehime Prefecture, Japan

Chromio-pargasite

Higashi-Akaishi dunite, Ehime prefecture, Japan

Chromio-pargasite

Higashi-Akaishi dunite, Ehime prefecture, Japan

Chromio-pargasite

Akaishi mine, Doi, Shikokuchuo City, Ehime Prefecture, Japan

Chromio-pargasite

Higashi-Akaishi dunite, Ehime prefecture, Japan

Chromio-pargasite

Higashi-Akaishi dunite, Ehime prefecture, Japan

Chromio-pargasite

Akaishi mine, Doi, Shikokuchuo City, Ehime Prefecture, Japan

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About Chromio-pargasiteHide

Formula:

{Na}{Ca₂}{Mg₄Cr³⁺}(Al₂Si₆O₂₂)(OH)₂

Chromio-Pargasite is defined as a pargasite group member with the following dominant elements:
A position: Na
C position: Mg as the dominant divalent cation and Cr as the dominant trivalent cation.
W position: (OH) as the dominant anion

Colour:

Emerald green to pale green

Lustre:

Vitreous

Hardness:

Specific Gravity:

3.08

Crystal System:

Monoclinic

Member of:

Pargasite Root Name Group > Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup

Name:

Originally named after the locality where it was found in the Ehime Prefecture, Japan.

Type Locality:

ⓘ Akaishi mine, Doi, Shikokuchuo City, Ehime Prefecture, Japan

This mineral was originally named Ehimeite in the original description and the 2011 IMA approval of the species. It has been renamed Chromio-pargasite in the 2012 amphibole nomenclature in order to create a consistant naming convention for the pargasite group minerals.

Classification of Chromio-pargasiteHide

IMA status:

Approved

Approval Year:

2011

Nickel-Strunz 10th (pending) ed.:

9.DE.15

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si₄O₁₁; Clinoamphiboles

Physical Properties of Chromio-pargasiteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Emerald green to pale green

Streak:

Pale green

Hardness:

6 on Mohs scale

Tenacity:

Brittle

Cleavage:

Perfect
on {110}

Fracture:

Irregular/Uneven

Density:

3.08(3) g/cm³ (Measured) 3.121 g/cm³ (Calculated)

Optical Data of Chromio-pargasiteHide

Type:

Biaxial (+)

RI values:

n_α = 1.644(2) n_β = 1.647(2) n_γ = 1.659(2)

2V:

Calculated: 53°

Max Birefringence:

δ = 0.015

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Surface Relief:

Moderate

Pleochroism:

Visible

Comments:

Yellowish green to bluish green.

Chemical Properties of Chromio-pargasiteHide

Formula:

{Na}{Ca₂}{Mg₄Cr³⁺}(Al₂Si₆O₂₂)(OH)₂

Chromio-Pargasite is defined as a pargasite group member with the following dominant elements:
A position: Na
C position: Mg as the dominant divalent cation and Cr as the dominant trivalent cation.
W position: (OH) as the dominant anion

IMA Formula:

NaCa₂(Mg₄Cr)(Si₆Al₂)O₂₂(OH)₂

Emperical Formula (of original material):

(Na_0.88K_0.07)(Ca_1.89Na_0.02Mg_0.09)(Mg_4.03Cr_0.62Al_0.19Fe³⁺_0.07Fe²⁺_0.07Ti_0.03)(Si_6.14Al_1.86)O₂₂(OH)₂

Elements listed:

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

Common Impurities:

Ti,Fe,K

Crystallography of Chromio-pargasiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/m

Setting:

C1 2/m 1

Cell Parameters:

a = 9.9176(14) Å, b = 18.0009(12) Å, c = 5.2850(7) Å
β = 105.400(7)°

Ratio:

a:b:c = 0.551 : 1 : 0.294

Unit Cell V:

909.6 Å³

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0019938	Chromio-pargasite	Nishio-Hamane D, Ohnishi M, Minakawa T, Yamaura J, Saito S, Kadota R (2012) Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: The first Cr-dominant amphibole from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan Journal of Mineralogical and Petrological Sciences 107 1-7		2012	Akaishi mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Chromio-pargasite'
loop_
_publ_author_name
'Nishio-Hamane D'
'Ohnishi M'
'Minakawa T'
'Yamaura J'
'Saito S'
'Kadota R'
_journal_name_full 'Journal of Mineralogical and Petrological Sciences'
_journal_volume 107 
_journal_year 2012
_journal_page_first 1
_journal_page_last 7
_publ_section_title
;
 Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: The first Cr-dominant amphibole
 from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan
 Note: name has been changed from ehimeite
;
_database_code_amcsd 0019938
_chemical_compound_source 'Akaishi mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan'
_chemical_formula_sum 'Si6.12 Al2.06 Mg4.06 Cr.6 Fe.14 Ti.02 Ca1.88 Na K.07 O24 H2'
_cell_length_a 9.91760
_cell_length_b 18.0057
_cell_length_c 5.28650
_cell_angle_alpha 90
_cell_angle_beta 105.3950
_cell_angle_gamma 90
_cell_volume 910.155
_exptl_crystal_density_diffrn      3.113
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
SiT1   0.28006   0.08505   0.30366   0.53000   0.00536
AlT1   0.28006   0.08505   0.30366   0.47000   0.00536
SiT2   0.28978   0.17287   0.81260   1.00000   0.00545
MgM1   0.00000   0.08883   0.50000   1.00000   0.00386
MgM2   0.00000   0.17560   0.00000   0.53000   0.00993
CrM2   0.00000   0.17560   0.00000   0.30000   0.00993
AlM2   0.00000   0.17560   0.00000   0.09000   0.00993
FeM2   0.00000   0.17560   0.00000   0.07000   0.00993
TiM2   0.00000   0.17560   0.00000   0.01000   0.00993
MgM3   0.00000   0.00000   0.00000   1.00000   0.00211
CaM4   0.00000   0.27969   0.50000   0.94000   0.00836
NaM4   0.00000   0.27969   0.50000   0.06000   0.00836
NaA   0.00000   0.50000   0.00000   0.88000   0.13500
KA   0.00000   0.50000   0.00000   0.07000   0.13500
O1   0.10739   0.08662   0.21821   1.00000   0.00840
O2   0.11988   0.17258   0.73037   1.00000   0.00746
O3   0.10788   0.00000   0.71708   1.00000   0.00882
O4   0.36554   0.24948   0.78665   1.00000   0.00925
O5   0.34953   0.14040   0.11364   1.00000   0.01102
O6   0.34428   0.11479   0.61427   1.00000   0.01164
O7   0.34128   0.00000   0.27210   1.00000   0.01315
H   0.19670   0.00000   0.74370   1.00000   0.00900
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
SiT1 0.00520 0.00515 0.00567 -0.00050 0.00132 -0.00034
AlT1 0.00520 0.00515 0.00567 -0.00050 0.00132 -0.00034
SiT2 0.00532 0.00570 0.00559 -0.00049 0.00190 0.00004
MgM1 0.00487 0.00380 0.00330 0.00000 0.00175 0.00000
MgM2 0.01022 0.00978 0.01005 0.00000 0.00318 0.00000
CrM2 0.01022 0.00978 0.01005 0.00000 0.00318 0.00000
AlM2 0.01022 0.00978 0.01005 0.00000 0.00318 0.00000
FeM2 0.01022 0.00978 0.01005 0.00000 0.00318 0.00000
TiM2 0.01022 0.00978 0.01005 0.00000 0.00318 0.00000
MgM3 0.00290 0.00168 0.00169 0.00000 0.00052 0.00000
CaM4 0.01032 0.00687 0.00942 0.00000 0.00532 0.00000
NaM4 0.01032 0.00687 0.00942 0.00000 0.00532 0.00000
NaA 0.02380 0.34300 0.04600 0.00000 0.02530 0.00000
KA 0.02380 0.34300 0.04600 0.00000 0.02530 0.00000
O1 0.00737 0.00999 0.00782 -0.00104 0.00196 0.00007
O2 0.00542 0.00862 0.00831 -0.00001 0.00180 0.00028
O3 0.00731 0.00880 0.01010 0.00000 0.00186 0.00000
O4 0.01063 0.00770 0.01030 -0.00263 0.00433 -0.00075
O5 0.00984 0.01316 0.00905 -0.00081 0.00073 0.00472
O6 0.00935 0.01232 0.01370 0.00049 0.00383 -0.00506
O7 0.00950 0.01420 0.01570 0.00000 0.00330 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
3.3694 Å	(58)
2.9319 Å	(43)
2.6971 Å	(81)
2.5853 Å	(50)
2.5462 Å	(100)
2.3461 Å	(42)
1.5140 Å	(55)

Type Occurrence of Chromio-pargasiteHide

Type Locality:

ⓘ Akaishi mine, Doi, Shikokuchuo City, Ehime Prefecture, Japan

General Appearance of Type Material:

Up to 1,5 cm long, emerald green, prismatic crystals

Place of Conservation of Type Material:

National museum of nature and science, Tokyo, Japan

Geological Setting of Type Material:

Chromio-pargasite is believed to have formed by reaction between chromite and metmorphic fluid in the retrogade stage of serpentinization of a dunite body metamorphosed to eclogite facies.

Synonyms of Chromio-pargasiteHide

Ehimeite

IMA2011-023

Sodic amphibole (in part)

Other Language Names for Chromio-pargasiteHide

Japanese:愛媛閃石

Relationship of Chromio-pargasite to other SpeciesHide

Member of:

Pargasite Root Name Group > Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup

Other Members of this group:

Ferro-chloro-pargasite	NaCa₂(Fe²⁺₄Al)(Al₂Si₆O₂₂)Cl₂
Ferro-fluoro-pargasite	(Na)(Ca₂)(Fe²⁺₄Al)(Al₂Si₆O₂₂)F₂
Ferro-pargasite	NaCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon.
Fluoro-pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
Mangani-pargasite	NaCa₂(Mg₄Mn³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
Potassic-chloro-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂Cl₂	Mon. 2/m : B2/m
Potassic-ferro-pargasite	KCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
Potassic-fluoro-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
Potassic-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon.
Vanadio-pargasite	NaCa₂(Mg³⁺₄V)(Al₂Si₆)O₂₂(OH)₂	Mon. 2/m : B2/m

Related Minerals - Nickel-Strunz Grouping Hide

9.DE.	Clino-suenoite	◻{Mn²⁺₂}{Mg₅}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.05	Cummingtonite	◻{Mg₂}{Mg₅}(Si₈O₂₂)(OH)₂	Mon.
9.DE.05	Clino-holmquistite Root Name Group	◻{Li₂}{Z²⁺₃Z³⁺₂}(Si₈O₂₂)(OH,F,Cl)₂	Mon.
9.DE.05	Grunerite	◻{Fe²⁺₂}{Fe²⁺₅}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.05	Permanganogrunerite	◻{Mn²⁺₂}{Mn²⁺₅}(Si₈O₂₂)(OH)₂	Mon.
9.DE.05	Ferri-fluoro-leakeite	{Na}{Na₂}{Mg₂Fe³⁺₂Li}(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.10	Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂OH₂	Mon. 2/m : B2/m
9.DE.10	Ferri-tschermakite	◻{Ca₂}{Mg₃Fe³⁺₂}(Al₂Si₆O₂₂)(OH)₂	Mon.
9.DE.10	Ferro-actinolite	◻Ca₂Fe²⁺₅(Si₈O₂₂)OH₂	Mon.
9.DE.10	Ferro-hornblende	◻Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	Mon.
9.DE.10	Ferro-tschermakite	◻{Ca₂}{Fe²⁺₃Al₂}(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Joesmithite	Pb²⁺Ca₂(Mg₃Fe³⁺₂)(Si₆Be₂)O₂₂(OH)₂	Mon.
9.DE.10	Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.10	Tremolite	◻{Ca₂}{Mg₅}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Tschermakite	◻(Ca₂)(Mg₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Cannilloite	CaCa₂(Mg₄Al)(Si₅Al₃O₂₂)OH₂	Mon.
9.DE.10	Fluoro-cannilloite	CaCa₂(Mg₄Al)(Si₅Al₃)O₂₂F₂	Mon.
9.DE.10	Parvo-manganotremolite	◻{CaMn²⁺}{Mg₅}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Fluoro-tremolite	◻{Ca₂}{Mg₅}(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.10	Ferro-ferri-hornblende	◻Ca₂(Fe²⁺₄Fe³⁺)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.15	Edenite	NaCa₂Mg₅(Si₇Al)O₂₂OH₂	Mon.
9.DE.15	Ferro-edenite	NaCa₂Fe²⁺₅(Si₇Al)O₂₂OH₂	Mon.
9.DE.15	Ferro-kaersutite	NaCa₂{Fe²⁺₃AlTi}(Si₆Al₂O₂₂)O₂	Mon.
9.DE.15	Ferro-pargasite	NaCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon.
9.DE.15	Hastingsite	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂OH₂	Mon.
9.DE.15	Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂	Mon.
9.DE.15	Magnesio-hastingsite	NaCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon.
9.DE.15	Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Sadanagaite	{Na}{Ca₂}{Mg₃Al₂}(Si₅Al₃O₂₂)(OH)₂	Mon.
9.DE.15	Fluoro-edenite	NaCa₂Mg₅(Si₇Al)O₂₂F₂	Mon. 2/m : P2/m
9.DE.15	Potassic-ferro-ferri-sadanagaite	{K}{Ca₂}{Fe²⁺₃Fe³⁺₂}(Al₃Si₅O₂₂)(OH)₂	Mon.
9.DE.15	Potassic-sadanagaite	{K}{Ca₂}{Mg₃Al₂}(Al₃Si₅O₂₂)(OH)₂	Mon.
9.DE.15	Potassic-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon.
9.DE.15	Potassic-ferro-sadanagaite	{K}{Ca₂}{Fe²⁺₃Al₂}(Al₃Si₅O₂₂)(OH)₂	Mon.
9.DE.15	Magnesio-fluoro-hastingsite	NaCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Potassic-fluoro-hastingsite	KCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Potassic-chloro-hastingsite	KCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂Cl₂	Mon. 2/m : B2/m
9.DE.15	Fluoro-pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Parvo-mangano-edenite	{Na}{CaMn²⁺}{Mg₅}(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-chloro-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂Cl₂	Mon. 2/m : B2/m
9.DE.15	Potassic-ferro-chloro-edenite	KCa₂Fe²⁺₅(AlSi₇O₂₂)Cl₂
9.DE.15	Potassic-magnesio-hastingsite	KCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-ferro-pargasite	KCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-fluoro-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Ferri-kaersutite	NaCa₂(Mg₃Fe³⁺Ti)(Si₆Al₂O₂₂)O₂	Mon. 2/m : B2/m
9.DE.15	Vanadio-pargasite	NaCa₂(Mg³⁺₄V)(Al₂Si₆)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferro-taramite	Na(CaNa)(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Barroisite	◻{CaNa}{Mg₃Al₂}(AlSi₇O₂₂)(OH)₂	Mon.
9.DE.20	Ferro-ferri-barroisite	◻(CaNa)(Fe²⁺₃Fe³⁺₂)(AlSi₇O₂₂)(OH)₂
9.DE.20	Ferro-ferri-winchite	◻[CaNa][Fe²⁺₄(Fe³⁺,Al)]Si₈O₂₂(OH)₂
9.DE.20	Ferri-barroisite	◻(CaNa)(Mg₃Fe³⁺₂)(AlSi₇O₂₂)(OH)₂
9.DE.20	Ferro-ferri-taramite	Na(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂
9.DE.20	Ferro-ferri-katophorite	Na(NaCa)(Fe²⁺₄Fe³⁺)(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferro-barroisite	◻{CaNa}{Fe²⁺₃Al₂}(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferro-richterite	{Na}{CaNa}{Fe²⁺₅}(Si₈O₂₂)(OH)₂	Mon.
9.DE.20	Ferro-winchite	◻{CaNa}{Fe²⁺₄Al}(Si₈O₂₂)(OH)₂	Mon.
9.DE.20	Ferro-katophorite	{Na}{CaNa}{Fe²⁺₄Al}[(AlSi₇)O₂₂](OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferri-katophorite	Na(CaNa)(Mg₄Fe³⁺)(AlSi₇O₂₂)(OH)₂	Mon.
9.DE.20	Ferri-taramite	Na(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂	Mon.
9.DE.20	Magnesiotaramite	{Na}{CaNa}{Mg₃AlFe³⁺}(Al₂Si₆O₂₂)(OH)₂	Mon.
9.DE.20	Richterite	{Na}{NaCa}{Mg₅}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Winchite	◻{CaNa}{Mg₄Al}(Si₈O₂₂)(OH)₂	Mon. 2/m
9.DE.20	Taramite	{Na}{CaNa}{Mg₃Al₂}(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Fluoro-richterite	{Na}{CaNa}{Mg₅}(Si₈O₂₂)(F,OH)₂	Mon. 2/m
9.DE.20	Katophorite	{Na}{CaNa}{Mg₄Al}[(AlSi₇)O₂₂](OH)₂	Mon. 2/m : B2/m
9.DE.20	Potassic-fluoro-richterite	{K}{CaNa}{Mg₅}(Si₈O₂₂)(F,OH)₂	Mon.
9.DE.20	Potassic-richterite	{K}{CaNa}{Mg₅}Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferri-ghoseite	◻[Mn²⁺Na][Mg₄Fe³⁺]Si₈O₂₂(OH)₂	Mon. 2/m
9.DE.20	Ferri-winchite	◻[CaNa][Mg₄(Fe³⁺,Al)]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	Fluoro-taramite	{Na}{CaNa}{Mg₃Al₂}(Al₂Si₆O₂₂)F₂	Mon. 2/m : B2/m
9.DE.20	Fluoro-katophorite	Na(CaNa)(Mg₄Al)(AlSi₇O₂₂)F₂	Mon.
9.DE.20	Ferri-fluoro-katophorite	Na(CaNa)(Mg₄Fe³⁺)(AlSi₇O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Arfvedsonite	[Na][Na₂][Fe²⁺₄Fe³⁺]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Eckermannite	NaNa₂(Mg₄Al}Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Ferro-eckermannite	NaNa₂(Fe²⁺₄Al)Si₈O₂₂(OH)₂	Mon.
9.DE.25	Ferro-glaucophane	◻[Na₂][Fe²⁺₃Al₂]Si₈O₂₂(OH)₂	Mon.
9.DE.25	Glaucophane	◻[Na₂][Mg₃Al₂]Si₈O₂₂(OH)₂	Mon.
9.DE.25	Potassic-mangani-leakeite	[(Na,K)][Na₂][Mg₂Mn³⁺₂Li]Si₈O₂₂(OH)₂	Mon.
9.DE.25	Mangano-ferri-eckermannite	{Na}{Na₂}{Mn²⁺₄Fe³⁺}Si₈O₂₂(OH)₂	Mon.
9.DE.25	Ferri-leakeite	[Na][Na₂][Mg₂Fe³⁺₂Li]Si₈O₂₂(OH)₂	Mon.
9.DE.25	Magnesio-riebeckite	◻{Na₂}{Mg₃Fe³⁺₂}(Si₈O₂₂)(OH)₂	Mon.
9.DE.25	Magnesio-arfvedsonite	{Na}{Na₂}{Mg₄Fe³⁺}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Nybøite	NaNa₂(Mg₃Al₂)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Riebeckite	◻[Na₂][Fe²⁺₃Fe³⁺₂]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Mangano-mangani-ungarettiite	NaNa₂(Mn²⁺₂Mn³⁺₃)(Si₈O₂₂)O₂	Mon.
9.DE.25	Ferro-ferri-nybøite	NaNa₂[(Fe²⁺₃,Mg)Fe³⁺₂](AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Clino-ferro-ferri-holmquistite	◻{Li₂}{Fe²⁺₃Fe³⁺₂}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Ferri-nybøite	NaNa₂(Mg₃Fe³⁺₂](AlSi₇O₂₂)(OH)₂	Mon.
9.DE.25	Ferro-ferri-leakeite	[Na][Na₂][Fe²⁺₂Fe³⁺₂Li]Si₈O₂₂(OH)₂	Mon.
9.DE.25	Ferro-ferri-fluoro-leakeite	Na(Na₂)(Fe²⁺₂Fe³⁺₂Li)(Si₈O₂₂)(F)₂	Mon.
9.DE.25	Sodic-ferri-clinoferroholmquistite	Na_0.5{Li₂}{Fe²⁺₃Fe³⁺₂}(Si₈O₂₂)(OH)₂	Mon.
9.DE.25	Magnesio-fluoro-arfvedsonite	[Na][Na₂][Mg₄Fe³⁺][Si₈O₂₂](F,OH)₂	Mon.
9.DE.25	Ferri-pedrizite	[Na][Li₂][Mg₂Fe³⁺₂Li]Si₈O₂₂(OH)₂	Mon.
9.DE.25	Potassic-ferri-leakeite	[K][Na₂][Mg₂Fe³⁺₂Li]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Fluoro-nybøite	NaNa₂(Mg₃Al₂)(AlSi₇O₂₂)(F,OH)₂	Mon. 2/m : B2/m
9.DE.25	Mangani-dellaventuraite	NaNa₂(MgMn³⁺₂Ti⁴⁺Li)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Fluoro-pedrizite	NaLi₂(Mg₂Al₂Li)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Potassic-arfvedsonite	[(K,Na)][Na₂][Fe²⁺₄Fe³⁺]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Mangani-obertiite	NaNa₂(Mg₃Mn³⁺Ti⁴⁺)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]	Mon. 2/m : B2/m
9.DE.25	Ferro-ferri-pedrizite	[Na][Li₂][Fe²⁺₂Fe³⁺₂Li]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Potassic-magnesio-arfvedsonite	[K][Na₂][Mg₄Fe³⁺]Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Pedrizite	NaLi₂(LiMg₂Al₂)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Ferro-pedrizite	NaLi₂(Fe²⁺₂Al₂Li)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Ferro-fluoro-pedrizite	Na(Li₂)(Fe²⁺₂Al₂Li)[Si₈O₂₂]F₂	Mon. 2/m : B2/m
9.DE.25	Fluoro-leakeite	NaNa₂(Mg₂Al₂Li)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Ferro-ferri-obertiite	NaNa₂(Fe²⁺₃Fe³⁺Ti)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Ferri-obertiite	NaNa₂(Mg₃Fe³⁺Ti)Si₈O₂₂O₂	Mon. 2/m : B2/m

Fluorescence of Chromio-pargasiteHide

In UV light:

Non-fluorescent.

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 Chromio-pargasiteHide

Reference List:

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Nishio-Hamane, D., Ohnishi, M., Minakawa, T., Yamaura, J., Saito, S., Kadota, R. (2012) Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: the first Cr-dominant amphibole from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan. Journal of Mineralogical and Petrological Sciences: 107: 1-7.

Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Chromio-pargasiteHide

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Localities for Chromio-pargasiteHide

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.


Japan
Ehime prefecture ⓘ Higashi-Akaishi dunite	Nishio-Hamane, D., Ohnishi, M., Minakawa, T., Yamaura, J., Saito, S. & Kadota, R. (2012): Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: the first Cr-dominant amphibole from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 107, 1-7.
Shikokuchuo City Doi ⓘ Akaishi mine (TL)	Nishio-Hamane, D., Ohnishi, M., Minakawa, T., Yamaura, J., Saito, S. & Kadota, R. (2012) Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: the first Cr-dominant amphibole from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 107, 1-7.

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Chromio-pargasite

About Chromio-pargasiteHide

Classification of Chromio-pargasiteHide

Physical Properties of Chromio-pargasiteHide

Optical Data of Chromio-pargasiteHide

Chemical Properties of Chromio-pargasiteHide

Crystallography of Chromio-pargasiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

Type Occurrence of Chromio-pargasiteHide

Synonyms of Chromio-pargasiteHide

Other Language Names for Chromio-pargasiteHide

Relationship of Chromio-pargasite to other SpeciesHide

Related Minerals - Nickel-Strunz GroupingHide

Fluorescence of Chromio-pargasiteHide

Other InformationHide

References for Chromio-pargasiteHide

Internet Links for Chromio-pargasiteHide

Localities for Chromio-pargasiteHide

Locality ListHide

Related Minerals - Nickel-Strunz Grouping Hide