Microcline : CSIRO Spectroscopy Database

Microcline [ KAlSi₃O₈ ]

Images of Microcline

Photograph of a specimen of chkalovite and sodalite on a microcline matrix, from Tunuliarfik, Ilímaussaq, Greenland

Shortwave and longwave UV photoluminescence image of a specimen of chkalovite (green) and sodalite (orange) on a microcline matrix, from Tunuliarfik, Ilímaussaq, Greenland

Microcline (var. amazonite) specimen from Crystal Peak, Park Co., CO, USA

Photo by Chip Clark, via Smithsonian National Museum of Natural History

Material properties

Formula	KAlSi₃O₈
Abbreviation	Mcc
Classification	K feldspar
Member	Amazonite
Luminescence emitters	AlO4, Ce, Exsolution features, Fe, Mn, Pb, SiO4, Trapped hole
Spectra	Reflectance (1)
IMA Status	Grandfathered (pre-IMA), 1830
Search other databases	webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Related materials	Orthoclase
Tags	Mineral, Aluminosilicate

Composition

Element	Atoms
K	1
O	8
Al	1
Si	3
Total:	13

References for Microcline

Reference

Lines

Spectra

Images

Hamblen 2003

Kirsh & Townsend 1988

Kuznetsov and Tarashchan 1988

CSIRO Reflectance 2025b

Rendell & Clarke 1997

Tarashchan 1978

Specimens of Microcline

Name	Owner	Materials	Phase purity	Image	Spectra	Techniques
M1611 Microcline	CSIRO	Albite, Ca, Microcline (82.0%), Muscovite-2M1, Quartz	82.0	M1611 Microcline Image of specimen 'M1611 Microcline' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
NR62 Orthoclase	CSIRO	Albite, Microcline (80.9%), Orthoclase, Quartz	80.9	NR62 Orthoclase Image of Microcline, Albite, Orthoclase and Quartz in specimen 'NR62 Orthoclase' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MCU_ALB_1 Albite	CSIRO	Albite, Ca, Microcline (80.3%)	80.3	MCU_ALB_1 Albite Image of 'MCU_ALB_1 Albite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
NR118 Microcline	CSIRO	Albite, Ca, Microcline (76.6%), Muscovite-2M1, Quartz	76.6	NR118 Microcline Image of Microcline, Albite (var. Ca), Muscovite-2M1 and Quartz in specimen 'NR118 Microcline' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MES300 Cookeite	CSIRO	Albite, Cookeite, Microcline (48.0%), Muscovite, Muscovite-1M, Muscovite-2M1, Quartz	48.0	MES300 Cookeite Image of Cookeite, Albite, Microcline, Muscovite and Quartz in specimen 'MES300 Cookeite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	1	Reflectance
M0945 Chrysocolla	CSIRO	Chrysocolla, Cuprite, Goethite, Malachite, Microcline (44.2%), Quartz	44.2	M0945 Chrysocolla Image of specimen 'M0945 Chrysocolla' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MES124 Hambergite	CSIRO	Albite, Ankerite, Cookeite, Hambergite, F, Microcline (39.0%), Orthoclase, Quartz	39.0	MES124 Hambergite Image of Microcline, Hambergite (var. F), Albite, Ankerite, Cookeite, Orthoclase and Quartz in specimen 'MES124 Hambergite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M2362 Sanidine	CSIRO	Albite, Ca, Albite, Ferro-ferri-hornblende, Microcline (36.7%), Muscovite-1M, Mg, Sanidine, high	36.7	M2362 Sanidine Image of specimen 'M2362 Sanidine' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MT8257 Andesine	CSIRO	Albite, Andesine, Microcline (33.2%), Quartz	33.2	MT8257 Andesine Image of 'MT8257 Andesine' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
M0194 Stibnite	CSIRO	Microcline (25.5%), Quartz, Stibnite	25.5	M0194 Stibnite Image of Quartz, Microcline and Stibnite in specimen 'M0194 Stibnite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
M0774 Goethite	CSIRO	Goethite, Microcline (16.0%), Muscovite, Muscovite-1M, Muscovite-2M1, Quartz	16.0	M0774 Goethite Image of specimen 'M0774 Goethite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M1296 Petalite	CSIRO	Albite, Ca, Microcline (11.1%), Muscovite-2M1, Orthoclase, Petalite, Quartz	11.1	M1296 Petalite Image of specimen 'M1296 Petalite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	1	Reflectance
MES085 Aegirine	CSIRO	Aegirine, Microcline (10.0%), Quartz	10.0	MES085 Aegirine Image of Aegirine, Microcline and Quartz in specimen 'MES085 Aegirine' [CSIRO], from Mount Malosa, Zomba District, Southern Region, Malawi. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
M0891 Chrysocolla	CSIRO	Chrysocolla, Goethite, Hematite, Microcline (6.4%), Montmorillonite, Quartz	6.4	M0891 Chrysocolla Image of Chrysocolla on Goethite in specimen 'M0891 Chrysocolla' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MES103 Labradorite	CSIRO	Albite, Ca, Labradorite, Microcline (5.6%), Muscovite-2M1, Quartz	5.6	MES103 Labradorite Image of specimen 'MES103 Labradorite' [CSIRO], from Ottawa, Ontario, Canada. Size: 20×14×13mm. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
MES104 Andesine	CSIRO	Albite, Ca, Albite, Andesine, Microcline (3.6%), Quartz	3.6	MES104 Andesine Image of 'MES104 Andesine' [CSIRO], from Ottawa, Ontario, Canada. Size: 25×12×10mm. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M0962 Malachite	CSIRO	Dolomite, Malachite, Microcline (3.2%), Quartz	3.2	M0962 Malachite Image of specimen 'M0962 Malachite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M0951 Malachite	CSIRO	Dolomite, Malachite, Microcline (2.7%)	2.7	M0951 Malachite Image of Malachite, Dolomite and Microcline in specimen 'M0951 Malachite' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M0939 Azurite balls	CSIRO	Azurite, Microcline (2.5%), Quartz	2.5	M0939 Azurite balls Image of specimen 'M0939 Azurite balls' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M2474 Azurite balls	CSIRO	Azurite, Cristobalite, Microcline (2.5%), Quartz	2.5	M2474 Azurite balls Image of Quartz, Azurite, Cristobalite and Microcline in specimen 'M2474 Azurite balls' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
46E0233 Albite	CSIRO	Albite, Analcime, Calcite, Microcline (2.0%)	2.0	46E0233 Albite Image of Albite, Analcime, Calcite and Microcline in specimen '46E0233 Albite' [CSIRO], from Bancroft, Hastings Co., Ontario, Canada. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—
M1284 Orthoclase	CSIRO	Albite, Ca, Microcline (2.0%), Muscovite-2M1, Orthoclase, Quartz	2.0	M1284 Orthoclase Image of specimen 'M1284 Orthoclase' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MES200 Quartz	CSIRO	Dolomite, Labradorite, Microcline (2.0%), Orthoclase, Quartz	2.0	MES200 Quartz Image of Quartz, Dolomite, Labradorite, Microcline and Orthoclase in specimen 'MES200 Quartz' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
MES201 Quartz	CSIRO	Albite, Ca, Aragonite, Calcite, Microcline (2.0%), Orthoclase, Quartz	2.0	MES201 Quartz Image of Quartz, Albite (var. Ca), Aragonite, Calcite, Microcline and Orthoclase in specimen 'MES201 Quartz' [CSIRO]. (C) 2026 CSIRO Mineral Resources. All rights reserved.	0	—
M0229 Molybdenite	CSIRO	Chalcopyrite, Microcline (1.4%), Molybdenite, Molybdenite-2H, Quartz	1.4	M0229 Molybdenite Image of Chalcopyrite, Microcline, Molybdenite-2H and Quartz in specimen 'M0229 Molybdenite' [CSIRO]. (C) 2025 CSIRO Mineral Resources. All rights reserved.	0	—