Barros Cassal, Rio Grande do Sul, Brazili
| Regional Level Types | |
|---|---|
| Barros Cassal | Municipality |
| Rio Grande do Sul | State |
| Brazil | Country |
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Type:
Mindat Locality ID:
223801
Long-form identifier:
mindat:1:2:223801:5
GUID (UUID V4):
f72df406-013e-4195-b9ab-383ec1c79738
Other Languages:
French:
Barros Cassal, Rio Grande do Sul, Brésil
German:
Barros Cassal, Rio Grande do Sul, Brasilien
Italian:
Barros Cassal, Rio Grande do Sul, Brasile
Portuguese:
Barros Cassal, Rio Grande do Sul, Brasil
Russian:
Баррус-Касал, Риу-Гранди-ду-Сул, Бразилия
Simplified Chinese:
巴罗斯卡萨尔, 南里奥格兰德, 巴西
Spanish:
Barros Cassal, Río Grande del Sur, Brasil
Basque:
Barros Cassal, Rio Grande do Sul, Brasil
Bishnupriya Manipuri:
বার্রোস কাসসাল, রিও গ্রান্ডে ডো সুল, ব্রাজিল
Cebuano:
Barros Cassal, Rio Grande do Sul , Brasil
Dutch:
Barros Cassal, Rio Grande do Sul, Brazilië
Esperanto:
Barros Cassal, Suda Rio-Grando, Brazilo
Guarani:
Barros Cassal, Rio Grande do Sul, Pindorama
Hungarian:
Barros Cassal, Rio Grande do Sul, Brazília
Kazakh (Cyrillic Script):
Баррус-Касал, Риу-Гранди-ду-Сул, Бразилия
Malagasy:
Barros Cassal, Rio Grande do Sul, Brazila
Minnan / Hokkien-Taiwanese:
Barros Cassal, Rio Grande do Sul, Pa-se
Norwegian:
Barros Cassal, Rio Grande do Sul, Brasil
Polish:
Barros Cassal, Rio Grande do Sul, Brazylia
Romanian:
Barros Cassal, Rio Grande do Sul, Brazilia
Swedish:
Barros Cassal, Rio Grande do Sul, Brasilien
Vietnamese:
Barros Cassal, Rio Grande do Sul, Brasil
Volapük:
Barros Cassal, Rio Grande do Sul, Brasilän
Waray:
Barros Cassal, Rio Grande do Sul, Brasil
Barros Cassal is a small town located about 30 Km south, south west of Soledade, Rio Grande do Sul. An area of amygdaloidal basalt that produces a type of chalcedony geode commonly lined with small quartz crystals and occasionally associated with other minerals. Most of these geodes are rather small, rarely exceeding 7 or 8 cm and have a distinctive "feathered" pattern in the chalcedony that comprises the "skin" of the geodes. They go by the trade name as mini cocos. Over the years hundreds of thousands, possibly more than a million of them have been collected and cut and polished and sold to markets in the USA, Europe and other countries.
[Rock Currier 2110]
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Goethite Formula: α-Fe3+O(OH) References: |
| ⓘ Mogánite ? Formula: SiO2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Agate Description: Rare at the locality. Occasionally occupying small parts of chalcedony geodes (feather "agates"). |
| ⓘ Quartz var. Chalcedony Formula: SiO2 Description: Geodes with peculiar patterns (feather "agates") that are the result of the intergrowth of two types of chalcedony: quartzine (or length-slow chalcedony) and length-fast chalcedony.
|
| ⓘ Quartz var. Quartzine Formula: SiO2 Description: Identified in polarized light microscopy. Major compound in so-called "feather agates" (which do not qualify as agate proper), where it is intergrown with length-slow chalcedony.
References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| ⓘ | Quartz var. Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Quartzine | 4.DA.05 | SiO2 |
| ⓘ | Mogánite ? | 4.DA.20 | SiO2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | α-Fe3+O(OH) |
| O | Oxygen | |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| O | ⓘ Mogánite | SiO2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Quartz var. Quartzine | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Mogánite | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Quartzine | SiO2 |
| Fe | Iron | |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
Fossils
This region is too big or complex to display the fossil list, try looking at smaller subregions.Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Barros_Cassal |
|---|---|
| Wikidata ID: | Q1786797 |
| GeoNames ID: | 3470373 |
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References
Barros Cassal, Rio Grande do Sul, Brazil