Tremolite : CSIRO Spectroscopy Database

Tremolite [ ☐Ca₂(Mg_5.0-4.5Fe^II_0.0-0.5)Si₈O₂₂(OH)₂ ]

Images of Tremolite

Shortwave UV photoluminescence image of a specimen of tremolite (orange PL) and clino-suenoite (reddish orange) from Talcville, New York. Size: 19cm

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Shortwave UV photoluminescence image of a specimen of tremolite (orange PL) and clino-suenoite (reddish orange) from Talcville, New York

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Image of a specimen of tremolite and clino-suenoite (tirodite) from Talcville, New York. Size: 19cm

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Tremolite from Mt Ibity, Antananarivo Province, Madagascar

Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

Image of a specimen of tremolite and clino-suenoite (tirodite) from Talcville, New York

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Material properties

Formula	☐Ca₂(Mg_5.0-4.5Fe^II_0.0-0.5)Si₈O₂₂(OH)₂
Abbreviation	Tr
Classifications	Minerals containing OH, Tremolite root name group, Ferro-actinolite-Tremolite (series)
Luminescence emitters	Cr, Fe, Mn, OH, Triplet-singlet
Spectra	Reflectance (2)
IMA Status	Approved/redefined (IMA 2012 s.p.)
Search other databases	webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags	Mineral, Silicate , Hydroxide

Composition

Element	Wt%
H	0.25
Mg	14.96
Ca	9.87
Si	27.66
O	47.27
Total:	100.01

References for Tremolite

Bakhtin 1985; Tarashchan 1978; Yarovoy 1996

0

0

Burns & Strens 1966

0

0

0

0

4

Pejcic et al. 2022 (EP2022-5804)

0

0

Pejcic et al. 2021 (EP2021-1148)

0

0

Tarashchan 1978

0

0

Specimens of Tremolite

Name	Owner	Materials	Phase purity	Image	Spectra	Techniques
MES177 Tremolite / Actinolite	NVCL, AuScope Limited	Actinolite, Clinochlore, Fe, Quartz, Tremolite (67.2%)	67.2	MES177 Tremolite / Actinolite Image of Actinolite, Clinochlore (var. Fe), Quartz and Tremolite in specimen 'MES177 Tremolite / Actinolite' [NVCL, AuScope Limited], from Spoo Ness, Lunda Wick, Unst, Shetland Islands, United Kingdom. (C) 2026 CSIRO Mineral Resources. All rights reserved.	2	Reflectance
NR_Act_1 Talc / Tremolite / Quartz	CSIRO	Albite, Clinochlore, Fe, Hematite, Muscovite-2M1, Quartz, Talc, Tremolite (17.0%)	17.0	NR_Act_1 Talc / Tremolite / Quartz Image of Talc, Albite, Clinochlore (var. Fe), Hematite, Muscovite-2M1, Quartz and Tremolite in specimen 'NR_Act_1 Talc / Tremolite / Quartz' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M1109 Diopside / Talc / Tremolite	CSIRO	Diopside, Quartz, Talc, Tremolite (13.0%)	13.0	M1109 Diopside / Talc / Tremolite Image of Diopside, Quartz, Talc and Tremolite in specimen 'M1109 Diopside / Talc / Tremolite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MT8280 Augite	CSIRO	Augite, Tremolite (6.0%)	6.0	MT8280 Augite Image of Augite and Tremolite in specimen 'MT8280 Augite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
NR-ACT-02 Actinolite	CSIRO	Actinolite, Clinochlore, Fe, Magnetite, Quartz, Tremolite (3.4%)	3.4	NR-ACT-02 Actinolite Image of Actinolite, Clinochlore (var. Fe), Magnetite, Quartz and Tremolite in specimen 'NR-ACT-02 Actinolite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.	2	Reflectance
M1865 Augite	CSIRO	Augite, Tremolite (3.0%)	3.0	M1865 Augite Image of Augite and Tremolite in specimen 'M1865 Augite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
MT8397 Labradorite / Diopside	CSIRO	Augite, Diopside, Fe2+, Labradorite, Lizardite, Nontronite-15.6A, Quartz, Rhodonite, Tremolite (3.0%)	3.0	MT8397 Labradorite / Diopside Image of Labradorite, Augite, Diopside (var. Fe2+), Lizardite, Nontronite-15.6A, Quartz, Rhodonite and Tremolite in specimen 'MT8397 Labradorite / Diopside' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M0866 Dolomite	CSIRO	Calcite, Dolomite, Tremolite (1.8%)	1.8	M0866 Dolomite Image of Dolomite, Calcite and Tremolite in specimen 'M0866 Dolomite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
Talc (New York)	Hamblen, Prof James O., Georgia Tech	Talc, Tremolite	—	Talc (New York) Photograph of a specimen of talc and tremolite from Arnold Pit, Balmat Mine, St Lawrence Co., New York. Size: 10cm Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.	0	—
Tremolite-Tirodite (Talcville, NY)	Hamblen, Prof James O., Georgia Tech	Clino-suenoite, Tremolite	—	Tremolite-Tirodite (Talcville, NY) Image of a specimen of tremolite and clino-suenoite (tirodite) from Talcville, New York. Size: 19cm Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.	0	—