Tuesday, March 15, 2011

Shards of Glass – Dichroic Glass

Dichroic glass is glass containing multiple micro-layers of metal oxides which give the glass dichroic optical properties. The invention of dichroic glass is often erroneously attributed to NASA and its contractors, who developed it for use in dichroic filters. Dichroic glass dates back to at least the 4th century AD as seen in the Lycurgus cup.

Multiple ultra-thin layers of different metals (gold, silver), metal oxides (titanium, chromium, aluminum, zirconium, magnesium) and silica are vaporized by an electron beam in a vacuum chamber. The vapor then condenses on the surface of the glass in the form of a crystal structure. This is sometimes followed by a protective layer of quartz crystal. The finished glass can have as many as 30 to 50 layers of these materials yet the thickness of the total coating is approximately 30 to 35 millionths of an inch (about 760 to 890 nm). The coating that is created is very similar to a gemstone and, by careful control of thickness, different colors are obtained.

I love working with dichroic glass, just not really good at making any beads or pendants; however I’m in luck! A very good friend and fellow artisan Anna is a premier glass designer here in San Antonio, Texas. She makes some of the most incredible, gorgeous dichroic one-of-kind pieces (I know, I personally have quite a few of her pendant sets!).

From time to time I purchase her pendants and incorporate them into my own creative designs; accenting with wire, metals, crystals, or natural stones; drawing on the colors of the pendant to develop the jewelry.

These latest designs feature dichroic glass dichroic pendant and earrings sets; accenting with tons of crystals, lampwork beads (another fun glass to work with), metals, and cultured freshwater pearls, just to name some.


Browse all our artisan crafted jewelry at our online shop – find your next treasure of wearable art!
*Research from various websites.

Monday, March 14, 2011

Fiesta of Gems Show

If you are a rockhound, general fossil, rock or mineral enthusiast and living in the surrounding around of San Antonio, than don’t miss the gem and mineral show this weekend! It is put on every year by the Southwest Gem & Minerals Society of San Antonio, Texas. This year marks their 50th Year Anniversary show!

There is something for the whole family --- gemstones, lapidary, beads, fossils, minerals, faceting, crystals, demonstrations, silvercraft, exhibits of all kinds, and jewelry. There will be door prizes hourly and the proceeds support the Earthy Science Scholarships.


March 19th – 20th
Live Oak Civic Center
Free Parking
Admission


Hours: 10:00am – 6:00pm (Sat)
10:00am – 4:00pm (Sun)


Come on out and celebrate and have tons of fun!

*Picture by Lee, registered Gemologist.

Tuesday, March 15, 2011

Shards of Glass – Dichroic Glass

Dichroic glass is glass containing multiple micro-layers of metal oxides which give the glass dichroic optical properties. The invention of dichroic glass is often erroneously attributed to NASA and its contractors, who developed it for use in dichroic filters. Dichroic glass dates back to at least the 4th century AD as seen in the Lycurgus cup.

Multiple ultra-thin layers of different metals (gold, silver), metal oxides (titanium, chromium, aluminum, zirconium, magnesium) and silica are vaporized by an electron beam in a vacuum chamber. The vapor then condenses on the surface of the glass in the form of a crystal structure. This is sometimes followed by a protective layer of quartz crystal. The finished glass can have as many as 30 to 50 layers of these materials yet the thickness of the total coating is approximately 30 to 35 millionths of an inch (about 760 to 890 nm). The coating that is created is very similar to a gemstone and, by careful control of thickness, different colors are obtained.

I love working with dichroic glass, just not really good at making any beads or pendants; however I’m in luck! A very good friend and fellow artisan Anna is a premier glass designer here in San Antonio, Texas. She makes some of the most incredible, gorgeous dichroic one-of-kind pieces (I know, I personally have quite a few of her pendant sets!).

From time to time I purchase her pendants and incorporate them into my own creative designs; accenting with wire, metals, crystals, or natural stones; drawing on the colors of the pendant to develop the jewelry.

These latest designs feature dichroic glass dichroic pendant and earrings sets; accenting with tons of crystals, lampwork beads (another fun glass to work with), metals, and cultured freshwater pearls, just to name some.


Browse all our artisan crafted jewelry at our online shop – find your next treasure of wearable art!
*Research from various websites.

Monday, March 14, 2011

Fiesta of Gems Show

If you are a rockhound, general fossil, rock or mineral enthusiast and living in the surrounding around of San Antonio, than don’t miss the gem and mineral show this weekend! It is put on every year by the Southwest Gem & Minerals Society of San Antonio, Texas. This year marks their 50th Year Anniversary show!

There is something for the whole family --- gemstones, lapidary, beads, fossils, minerals, faceting, crystals, demonstrations, silvercraft, exhibits of all kinds, and jewelry. There will be door prizes hourly and the proceeds support the Earthy Science Scholarships.


March 19th – 20th
Live Oak Civic Center
Free Parking
Admission


Hours: 10:00am – 6:00pm (Sat)
10:00am – 4:00pm (Sun)


Come on out and celebrate and have tons of fun!

*Picture by Lee, registered Gemologist.