Some of the specimens have matrix attached. This matrix has areas that fluoresce Yellow-Green under all UV wavelengths. The fluorescence in the matrix is probably due to the same activators that cause the opal to fluoresce. They just behave differently in the Matrix.
This material has been called Yellow Opal, Honey Opal, Lemon Opal and Manhattan Opal. The only way to really keep track of this is to look where the material comes from. Unfortunately, that is confusing to since the mine has been called both the Manhattan Mine and the McLaughlin Mine. This mine is now gone so the only place to get specimens is from old collections.
Below is a detailed description of each specimen. You would pay $125 if you purchased these individually.
- Sale Price: $15. Ref Num: 22625. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.2" x 1" x 0.9", 0.5oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $10. Ref Num: 22629. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.1" x 0.9" x 0.7", 0.3oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $20. Ref Num: 22980. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.3" x 1.2" x 1", 0.6oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $20. Ref Num: 22982. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.3" x 0.9" x 0.7", 0.5oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $15. Ref Num: 22993. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.1" x 1" x 0.8", 0.4oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $15. Ref Num: 22994. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.5" x 0.8" x 0.8", 0.4oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $10. Ref Num: 23005. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.1" x 0.8" x 0.5", 0.2oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $10. Ref Num: 23010. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW). Size: 1.3" x 1" x 0.5", 0.3oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Sale Price: $10. Ref Num: 23013. Description: Honey, Lemon, Yellow Opal (FL Yellow SW, MW, LW), Matrix . Size: 1.4" x 0.8" x 0.8", 0.4oz. Location: McLaughlin Mine (Manhattan Mine). City: Knoxville. County: Napa County. State: CA. Country: USA.
- Description: Set of 9 Manhattan Mine Opals (FL Yellow SW, MW, LW)
- Location: McLaughlin Mine (Manhattan Mine), Knoxville, Napa County, CA, USA
- Size: 1.1 to 1.5" x " x "
- Weight: 3.6 oz
Contact me if you have any questions. Be sure to check out my eBay store: Jim's Obscure Stuff for more fluorescent minerals and other unusual items.
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