Virtual Museum ID: 19-LDM18
Opal is a mineraloid composed of amorphous silica. It is not considered a true mineral as it lacks an ordered atomic arrangement. This is due to the presence of water, differentiating it from crystalline silica (quartz). The internal structure of opal causes it to diffract light, producing pearly iridescence.
The information listed below relates to the current holding location or collection that the sample is from, and whether the item is viewable at that location or is part of a private collection. Coordinates are given as guides, and we remind you that collecting specimens from these locations is not allowed. Caution is advised visiting such sites and Below BC assumes no responsibility for any injuries or trespassing charges that may occur as a result of the viewer entering these sites.
Original Collection:Lakes District Museum (LDM)
Virtual Museum ID:19-LDM18
Date Added to VM:2019-08-23
Sample Origin:S of Francois Lake, B.C.
Specific Site:Cheslatta Lake
Datum:10 (NAD 83)
Primary Mineral Formula:SiO2 · nH2O
Advanced Geological Information
The following section provides geological data relating to the specimen or the site it was collected from, when available. Information has been obtained from various sources including private and government datasets but may not be up to date. Any geological time periods or ages listed often relate to the primary geology of the area, and may not be the actual date of an event such as mineral formation.