How do I identify old cobalt blue glass?

Look for any type of glassware, vase, flask or jar that has a blue appearance. These are all considered to be cobalt glass. Some glass will be entirely blue, while other pieces may have a striated blue appearance. It is also common for the glass to have white swirled along with the blue.

Keeping this in consideration, what is cobalt blue glass worth?

Moderately priced vintage selections in cobalt blue vary widely in variety and price. You can still find a single Chevron milk pitcher or violin-shaped bottle in this color for well under 30 dollars. Authentic Shirley Temple pieces from the Depression-era can still be found for under 50 dollars apiece.

Beside above, when was cobalt blue glass popular? Bristol Blue is one of the most famous. Fenton's blue carnival glass is a cobalt blue. So is Fenton's Royal Blue and Periwinkle Blue (both from the 1930s), their Blue Silvertone in the Sheffield pattern and Velva Blue from 1981. The Cambridge Glass Company used cobalt for their Royal Blue and their Moonlight Blue.

Keeping this in view, what is cobalt blue glass?

Cobalt glass—known as "smalt" when ground as a pigment—is a deep blue coloured glass prepared by including a cobalt compound, typically cobalt oxide or cobalt carbonate, in a glass melt. Cobalt is a very intense colouring agent and very little is required to show a noticeable amount of colour.

Is blue glass worth money?

A glass or plate may sell for under $15 while sets and larger items may run upwards of $200. Pink glass is most valuable, followed by blue and green.

39 Related Question Answers Found

Is cobalt blue glass toxic?

Cobalt blue is toxic when inhaled or ingested.

What glassware is valuable?

Bowl milk glass via Wikimedia Commons. Despite its name, white wasn't the only color produced: opaque black, pink, and green were some of the more expensive variants of milk glass. Generally, pieces dating from the mid-19th through the early-20th century are considered the most valuable.

What is vintage glassware?

Antique glass is glassware produced from the late 1800s through the mid-1900s. While we purchase delicate objects for display, vintage glassware can also be functional items for the kitchen. Antique glass comes in a wide variety of colors, styles, and patterns, making them a fascinating collector's hobby.

What is the difference between cobalt blue and royal blue?

Royal blue is a deep shade of blue that is sometimes associated with tinges of slight red or purple. Navy blue is a dark shade of blue that is almost similar to color black. Cobalt blue is a shade of color blue that is medium and bright.

How can I tell if a vase is valuable?

Look for a mark on the bottom of the vase. Marks may reflect the name of the company that made the vase, as well as the name of its designer. When the vase has a company name and an artist's name, it may be worth more than if it simply has a company name. Marks may be inked, painted or engraved into the bottom.

Where is cobalt blue from?

Names for Cobalt blue:

Alternative names:	Thénards blue, Dresden blue
Word origin:	The name "Cobalt blue" comes from Middle High German kobolt = an underground goblin (cobalt was thought to be detrimental to silver ores).
Non-English names:	German French Italian Kobaltblau bleu de cobalt blu cobalto
Origin:	artificial

How do you identify cobalt?

Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.

Are old glass bottles worth money?

While not all old bottles are valuable, an older bottle is more likely to be worth more than a newer one. Seams and pontil marks are two of the ways you can determine a bottle's age. The Open Pontil bottle describes bottles which were made from the 1600s to about 1855.

How do you make cobalt blue?

If you want to make a color like cobalt blue, purchase ultramarine blue or a kit, and buy a separate tube of turquoise blue. When you mix these colors correctly, the paint turns a bright cobalt blue.

Is cobalt glass safe to drink from?

Summary: Enamelled drinking glasses and popular merchandise can contain more than 1000 times the limit level of lead and up to 100 times the limit level of cadmium, a study has shown. Enamelled drinking glasses and popular merchandise can contain potentially toxic levels of lead and cadmium, a study has shown.

How do they make blue glass?

Deeper blues are obtained by adding up to ten pounds of cobalt oxide to a ton of glass. This deep blue glass can then be ground up into a powder called "SMALT" which is used as a coloring agent for enamel, for glazes on pottery, and for making more blue glass.

What color goes with cobalt blue?

If you do not want to have clown-like appearance, escape pairing cobalt blue with the colors as bright as it is like neon pink or yellow. To the contrary you'd better support existing fresh tendency by adding soft or dark blue. In this case the best way to accent is to use white.

How can you tell if Depression glass is real?

Look for tiny bubbles on the surface of the glass.

Check the piece very closely, and look at it from all angles. If it is a real piece of depression glass, there will be a scattering of small bubbles. The bubbles are about the size of a full stop at the end of a sentence.

What is the value of Depression glass?

The value varies greatly depending on the condition, seller, and venue, so you'll find a single glass anywhere between $15 and $50.

What is a Pontil mark on glass?

A pontil mark or punt mark is the scar where the pontil, punty or punt was broken from a work of blown glass. The presence of such a scar indicates that a glass bottle or bowl was blown freehand, while the absence of a punt mark suggests either that the mark has been obliterated or that the work was mold-blown.

Is vintage glassware safe?

Compared to modern kitchen items, vintage Pyrex — which is heavy, increasingly expensive and not dishwasher safe — doesn't seem immediately practical. Yet people remain obsessed with the old Pyrex — not just to look at but to actually use.

How do I identify an antique?

There are several steps involved in identifying an antique.

First, examine the silver for marks.
Use a silver hallmark guide like the ones on Antique Cupboard or the Online Encyclopedia of Silver Marks to identify the manufacturer.
From there, examine all the patterns made by this manufacturer, and match one to yours.