Blue Chalcedony
A variety of Quartz
This page is currently not sponsored. Click here to sponsor this page.
About Blue Chalcedony
Formula:
SiO2
A variety of Chalcedony
Blue colour caused by the Tyndall effect (light scattering by colloid sized particles). Transmitted light looks yellowish or reddish rather than blue.
Blue colour caused by the Tyndall effect (light scattering by colloid sized particles). Transmitted light looks yellowish or reddish rather than blue.
Unique Identifiers
Mindat ID:
39146 (as Blue Chalcedony)
3337 (as Quartz)
3337 (as Quartz)
Long-form identifier:
mindat:1:1:39146:7 (as Blue Chalcedony)
mindat:1:1:3337:0 (as Quartz)
mindat:1:1:3337:0 (as Quartz)
GUID
(UUID V4):
(UUID V4):
3a938ad9-a12f-446e-a258-8714dace3f59 (as Blue Chalcedony)
4ca61d6f-75f8-4208-8fb2-3b0eecbcd8f0 (as Quartz)
4ca61d6f-75f8-4208-8fb2-3b0eecbcd8f0 (as Quartz)
Pronunciation of Blue Chalcedony
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Debbie Woolf | United Kingdom |
Chemistry of Blue Chalcedony
Mindat Formula:
SiO2
Elements listed:
Common Associates
Associated Minerals Based on Photo Data:
| 23 photos of Blue Chalcedony associated with Quartz | SiO2 |
| 9 photos of Blue Chalcedony associated with Calcite | CaCO3 |
| 8 photos of Blue Chalcedony associated with Limonite | |
| 6 photos of Blue Chalcedony associated with Okenite | Ca10Si18O46 · 18H2O |
| 4 photos of Blue Chalcedony associated with Mordenite | (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O |
| 2 photos of Blue Chalcedony associated with Amethyst | SiO2 |
| 2 photos of Blue Chalcedony associated with Chalcedony | SiO2 |
| 2 photos of Blue Chalcedony associated with Apophyllite Group | AB4[Si8O22]X · 8H2O |
| 1 photo of Blue Chalcedony associated with Fluorapophyllite-(K) | KCa4(Si8O20)(F,OH) · 8H2O |
| 1 photo of Blue Chalcedony associated with Monheimite | (Zn,Fe)CO3 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Blue Chalcedony
mindat.org URL:
https://www.mindat.org/min-39146.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Blue Chalcedony
Reference List:
Localities for Blue Chalcedony
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Canada | |
| |
Japan | |
| Alfredo Petrov |
Malawi | |
| Vanrusselt (2023) |
Namibia | |
| Ernst Schnaitmann specimen |
Portugal | |
| Rui Nunes info |
Romania | |
| Nicu Pascanu Collection |
Turkey | |
| "Dan Costian" Collection |
USA | |
| - (2005) |
| Pabian (1993) |
| Douglas Schonewald specimens |
Otjoruharui Farm 251, Omatako Constituency, Otjozondjupa Region, Namibia