Unnamed Quartz-Melanophlogite occurrence [2], Encino, Los Angeles County, California, USAi
| Regional Level Types | |
|---|---|
| Unnamed Quartz-Melanophlogite occurrence [2] | Occurrence |
| Encino | - not defined - |
| Los Angeles County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
34° 9' 33'' North , 118° 30' 1'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Encino | 44,581 (2018) | 0.1km |
| Sherman Oaks | 52,677 (2017) | 4.8km |
| Van Nuys | 136,443 (2018) | 5.6km |
| Northridge | 68,469 (2018) | 8.4km |
| North Hills | 56,946 (2018) | 8.7km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Del Air Rockhounds Club | Northridge, California | 8km |
| Woodland Hills Rock Chippers, Inc. | San Fernando Valley, California | 13km |
| The Culver City Rock and Mineral Club | Culver City, California | 18km |
| Sierra Pelona Rock Club | Newhall, California | 25km |
| Southern California Paleontological Society | Los Angeles, California | 26km |
A quartz-melanophlogite occurrence at Encino.
Mineralization is hosted in sandstone and breccia.
In 1936 Murdoch (MURDOCH, 1936) described what he thought were chalcedony pseudomorphs after fluorite from 5 locations in Encino, and one 4 miles east near the head of Higgins Canyon. However, he only identified the locations with the letters A through F without any more detailed position information. He identified the host rocks as sediments of the Topanga or Modello Formations. Murdoch also gives some references to earlier reported occurrences of chalcedony after fluorite. A later listing of mineral localities in Los Angeles County, (SHARP, 1959) mentions chalcedony after fluorite, as occurring near the end of Harclare Lane in Encino. The Los Angeles County Museum of Natural History has on display a sample donated in 1965 by Virgil Ketner and listed as coming from Oldham Street in Encino. It appears to be about 12 mm on an edge and might be evidence of the biggest melanophlogite crystal known. Harclare Lane and Oldham Street are close together and probably roughly define the area where Murdoch’s Encino localities were. The area is built up now so no possibility exists to study the material in place any longer. (Housley, 2013).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Melanophlogite Formula: 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| ⓘ Quartz Formula: SiO2 Description: Occurs as pseudomorphs after fluorite in sandstone and breccia. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Melanophlogite | 4.DA.25 | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| C | Carbon | |
| C | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| N | Nitrogen | |
| N | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| O | Oxygen | |
| O | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Melanophlogite | 46SiO2 · 6(N2,CO2) · 2(CH4,N2) |
| Si | ⓘ Quartz | SiO2 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America Plate
- California BorderlandAccretionary Complex
- Franciscan DomainDomain
- Southern California Borderland BasinsBasin
Pacific PlateTectonic Plate
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