Iridescent Gold

What chemical is purple in the bottle and gold upon touching air?

I remember using it in Grade 12 biology, and I think we were staining cells with it. It was incredibly vivid purple or indigo in the bottle and when it hit skin (as my lab partner found out, whoops) but when just a little was spilled on the counter top or dribbled down the side of the bottle it turned a remarkable iridescent gold colour.

I remember the teacher referred to it as "(something) Violet" or "(something) Purple". Any ideas?

Cell staining is usually done with crystal violet, also called gentian violet.

Find Iridescent Gold On eBay Below:

Vintage INDIANA CARNIVAL Glass Iridescent AMBER GOLD Lipped Pedestal PITCHER EUC
Vintage INDIANA CARNIVAL Glass Iridescent AMBER GOLD Lipped Pedestal PITCHER EUC
$32.99
6 Indiana Glass Iridescent Amber Gold Carnival Grape Leaf Punch Cups
6 Indiana Glass Iridescent Amber Gold Carnival Grape Leaf Punch Cups
$8.99
Signed Correia Iridescent Cranberry Ruby Gold Pulled Feather Design Bowl XLNT
Signed Correia Iridescent Cranberry Ruby Gold Pulled Feather Design Bowl XLNT
$399.99
Neo Art Glass handcrafted mushroom ornament pinkgoldgreenblue signed KHeaton
Neo Art Glass handcrafted mushroom ornament pinkgoldgreenblue signed KHeaton
$28.69
PHENOMENAL Iridescent SIGNED Art Glass PERFUME Bottle DICHROIC with GOLD LEAF
PHENOMENAL Iridescent SIGNED Art Glass PERFUME Bottle DICHROIC with GOLD LEAF
$139.00
Robert Held Art Glass Mdium Iridescent Gold Sea Urchin
Robert Held Art Glass Mdium Iridescent Gold Sea Urchin
$22.75
Liberty Bell Gold Iridescent Glass cookie jarvasecollector item 1776bank
Liberty Bell Gold Iridescent Glass cookie jarvasecollector item 1776bank
$9.00
Indiana Glass Iridescent Gold Carnival Harvest Grape 7 Canister
Indiana Glass Iridescent Gold Carnival Harvest Grape 7 Canister
$29.99
Gold Durand Art Glass Vase Gold Iridescent Finish Signed  Numbered c1920
Gold Durand Art Glass Vase Gold Iridescent Finish Signed Numbered c1920
$760.00
Exquisite Orient  Flume Iridescent Gold Millefiori Hawthorne Vase
Exquisite Orient Flume Iridescent Gold Millefiori Hawthorne Vase
$495.00
Indiana Iridescent Gold Carnival Glass Pitcher Harvest Grape Leaves Pattern 1217
Indiana Iridescent Gold Carnival Glass Pitcher Harvest Grape Leaves Pattern 1217
$24.99
Vintage Indiana Glass Gold Carnival Iridescent Hen on Nest Covered Chicken Dish
Vintage Indiana Glass Gold Carnival Iridescent Hen on Nest Covered Chicken Dish
$44.99
OPULENT Lundberg Studios GLASS VASE Iridescent DYNAMIC Blue PURPLE Gold SIGNED
OPULENT Lundberg Studios GLASS VASE Iridescent DYNAMIC Blue PURPLE Gold SIGNED
$850.00
Neo Art Glass iridescent purple gold swirl pebble  silver dragonfly  Kheaton
Neo Art Glass iridescent purple gold swirl pebble silver dragonfly Kheaton
$6.86
SUPERB LOETZ GOLD IRIDESCENT  SILVER OVERLAY VASE CIRCA 1900
SUPERB LOETZ GOLD IRIDESCENT SILVER OVERLAY VASE CIRCA 1900
$1,275.00
Vintage Carnival Glass Bowl Amber Gold Iridescent Glass Berries and Leaves
Vintage Carnival Glass Bowl Amber Gold Iridescent Glass Berries and Leaves
$10.00
Jeannette Carnival Glass Iris Iridescent 2 Double Light Candlesticks Flora Gold
Jeannette Carnival Glass Iris Iridescent 2 Double Light Candlesticks Flora Gold
$29.95
1900s HEARTS  CLINGING VINES GOLD THREADED IRIDESCENT 2 ART GLASS LAMP SHADES
1900s HEARTS CLINGING VINES GOLD THREADED IRIDESCENT 2 ART GLASS LAMP SHADES
$199.00
355 Lalique RONCES Art Nouveau IRIDESCENT GOLD Silver Bracelet MIB 7806600
355 Lalique RONCES Art Nouveau IRIDESCENT GOLD Silver Bracelet MIB 7806600
$199.99
Mt St Helens Hand Blown Glass Ornament Iridescent Green Gold and Turq Swirls
Mt St Helens Hand Blown Glass Ornament Iridescent Green Gold and Turq Swirls
$24.50
Vintage Art Glass VASE Iridescent Swirl GOLD Blue GREEN Pink
Vintage Art Glass VASE Iridescent Swirl GOLD Blue GREEN Pink
$90.00
Neo Art Glass iridescent gold lightning pebble with silver dragonfly by Kheaton
Neo Art Glass iridescent gold lightning pebble with silver dragonfly by Kheaton
$56.15
Gold Iridescent Star Pattern Carnival Glass Bowl 9 Inches CA
Gold Iridescent Star Pattern Carnival Glass Bowl 9 Inches CA
$26.95
Vintage Carnval Glass Gold Iridescent Color Bowl
Vintage Carnval Glass Gold Iridescent Color Bowl
$9.99
Glasform John Ditchfield iridescent gold Pear shaped paperweight
Glasform John Ditchfield iridescent gold Pear shaped paperweight
$12.47
Rollin Karg Studio Paperweight Pink Blue  Iridescent Golds Triangular Signed
Rollin Karg Studio Paperweight Pink Blue Iridescent Golds Triangular Signed
$29.00
Indiana Glass Iridescent Gold Carnival Loganberry Bon Bon Candy Dish Relish Bowl
Indiana Glass Iridescent Gold Carnival Loganberry Bon Bon Candy Dish Relish Bowl
$11.99
Glasform John Ditchfield iridescent gold Apple shaped paperweight
Glasform John Ditchfield iridescent gold Apple shaped paperweight
$12.47
ENTHRALLING Big SIGNED Art Glass VASE Blue GOLD Purple IRIDESCENT Designs 1970s
ENTHRALLING Big SIGNED Art Glass VASE Blue GOLD Purple IRIDESCENT Designs 1970s
$650.00
Akcam Handmade Art Glass Iridescent Amber Gold Flower Candy Dish Bowl
Akcam Handmade Art Glass Iridescent Amber Gold Flower Candy Dish Bowl
$14.99
Vintage Indiana Carnival Gold Iridescent Glass Celery Dish Pretzel Pattern
Vintage Indiana Carnival Gold Iridescent Glass Celery Dish Pretzel Pattern
$9.99
Jeanette Glass Iris And Herringbone 64 Oz Iridescent Marigold Flora Gold Pitcher
Jeanette Glass Iris And Herringbone 64 Oz Iridescent Marigold Flora Gold Pitcher
$38.99
Beautiful Glass Oyster Shallow Bowl Platter Pearl Iridescent Gold
Beautiful Glass Oyster Shallow Bowl Platter Pearl Iridescent Gold
$52.99
Steuben Quezal Gold Aurene Bell Shade Iridescent Optic Rib Art Glass Lamp Light
Steuben Quezal Gold Aurene Bell Shade Iridescent Optic Rib Art Glass Lamp Light
$125.00
Signed QUEZAL Gold Aurene Iridescent Rib Art Glass Lamp Light Shade Steuben Era
Signed QUEZAL Gold Aurene Iridescent Rib Art Glass Lamp Light Shade Steuben Era
$195.00
JPope GreenBlue  Gold Iridescent Art Glass Vase
JPope GreenBlue Gold Iridescent Art Glass Vase
$69.99
Vintage Iridescent Gold Princess Pattern Grape Punch Bowl Indiana Glass EUC Box
Vintage Iridescent Gold Princess Pattern Grape Punch Bowl Indiana Glass EUC Box
$39.99
VINTAGE 1960s JEANETTE GLASS IRIDESCENT CARNIVAL SALAD BOWL IN FLORAL GOLD
VINTAGE 1960s JEANETTE GLASS IRIDESCENT CARNIVAL SALAD BOWL IN FLORAL GOLD
$19.99
Fenton Carnival Glass Green Gold Iridescent Grape  Cable Pattern Basket weave
Fenton Carnival Glass Green Gold Iridescent Grape Cable Pattern Basket weave
$55.99
Carnival Glass Indiana Iridescent Gold Independence Hall Plate
Carnival Glass Indiana Iridescent Gold Independence Hall Plate
$21.99


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