| Locality type: | Municipality |
| Classification |
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| Species: | Anthophyllite |
| Formula: | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| Comments: | Antophyllite occurs here in irregular “ball” shaped nodules. The nodules are layered with a phlogopite core, a thin intermediate talc layer with a thicker (up to a few cm) anthophyllite layer surrounded by dark mica (“biotite/phlogopite”). The anthophyllite is often intergrown with tremolite. These “Hermanov balls” are normally between 3 and 9 cm in size and can give quite attractive mineral specimens. Larger "balls" exceeding 10 cm are known.
The anthophyllite bearing nodules are found in the contact zone between a serpentinized ultrabasic rock and an intruding granitic pegmatite. |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Phlogopite | ⓘ27 photos of Anthophyllite associated with Phlogopite at this locality. |
| Chlorite Group | ⓘ11 photos of Anthophyllite associated with Chlorite Group at this locality. |
| Data |
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| Mineral Data: | Click here to view Anthophyllite data |
| Locality Data: | Click here to view Heřmanov, Žďár nad Sázavou District, Vysočina Region, Czech Republic |
| Photo Gallery | View Gallery (13 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 107973 |
| Long-form Identifier: | 1:3:107973:9 |
| GUID (UUID V4): | 3ff0485a-a070-4aff-80b0-2e3d836732fe |
| Nearest other occurrences of Anthophyllite |
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| 10.8km (6.7 miles) | ⓘVěžná serpentinite quarry, Věžná, Žďár nad Sázavou District, Vysočina Region, Czech Republic |
| 10.9km (6.8 miles) | ⓘVěžná I pegmatite, Věžná, Žďár nad Sázavou District, Vysočina Region, Czech Republic |
| 12.8km (8.0 miles) | ⓘRožná pegmatite (Rozna; Roschna), Rožná, Žďár nad Sázavou District, Vysočina Region, Czech Republic |
| 70.6km (43.9 miles) | ⓘNonndorf gabbro quarry, Nonndorf bei Raabs, Raabs an der Thaya, Waidhofen an der Thaya District, Lower Austria, Austria |
| 73.6km (45.7 miles) | ⓘSerpentinite quarry, Pingendorf, Drosendorf-Zissersdorf, Horn District, Lower Austria, Austria |
| 77.9km (48.4 miles) | ⓘMarkovice quarry, Žleby, Kutná Hora District, Central Bohemian Region, Czech Republic |
| 97.9km (60.9 miles) | ⓘPacova Hill quarry, Dolní Hořice, Tábor District, South Bohemian Region, Czech Republic |
| 98.4km (61.1 miles) | ⓘModlisch quarry, Schwarzenau, Zwettl District, Lower Austria, Austria |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | Elbaite with albite, 6.5 cm, from Stak Nala, Skardu district, GilgitBaltistan, Pakistan. Your Mineral Collection...two large pegmatite pockets at Stak Nala, Skardu district, Gilgit-Baltistan (Gilgit-Baltistan is the province...Ashio-machi, Nikko City, Tochigi Prefecture, Kanto region, Honshu, Japan. They are groups, from 3.5 cm to...Ashio-machi, Nikko City, Tochigi Prefecture, Kanto region, Honshu, Japan. Khyber Minerals specimen; Ibrahim...aspired to see a “sphere of Heřmanov,” or, more informally put, a “Heřmanov ball?” The former is the term |
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Heřmanov, Žďár nad Sázavou District, Vysočina Region, Czech Republic