|
| |
| Faenza |
 |
Ravenna, Italy. Ceramic production center
since the XIV century |
|
|
|
| Faience |
|
A ware made in Egypt known as “thehent”
by ancient Egyptians and which means ‘shiny or glittering’.
It is a vitreous paste made up by grind-quartz frit with
small quantities of natron, lime and plant ashes.
Glass paste made up by grind -quartz frit with small quantities
of natron, lime and plants ashes.
Also known as Egyptian ware. |
|
|
|
| Faienza |
|
Ceramic object covered with glaze and coloured
with enamel, such as that made in Italy, similar to Egyptian
faience. |
|
|
|
| Feldspar |
|
Mineral group chemically constituted by
soda, potassium, calcium and barium aluminosilicates.
Feldspars are the most abundant and widespread minerals
of Earth’s lythosphere.
Feldspars are also major constituents of igneous and metamorphic
rocks. They are used as raw material in the ceramic industry.
A very high percentage of the rocks forming earth’s
crust are “feldspathides” such as granite, that
is, having a variable content of a mineral called feldspar
which in time becomes kaolin deposits due to the effects
of water.
Feldspathides Mineral group chemically composed by sodium
aluminosilicate, potash and calcium differing from feldspars
by a minor silica content, such as lapis lazuli. |
|
|
|
| Fern Glass |
|
Greenish tinted glass made since the Middle
Ages. The green colouring comes from an alloy of iron
and impure potash. |
|
|
|
| Filigrana |
|
Venetian or Venetian style glass.
Literally, thread grained. Decorated by the use of opaque
white or coloured glass threads in lace-like or crisscross
patterns. |
|
|
|
| Flint |
|
.Common term for silex.
Fine grained silica rock, hard and compact, mostly constituted
by calcedony (quartz) of variable colors occurring as
nodules, hard mass or fine layers inside limestone (chalk)
and dolomites.
Prehistoric people used it for the making of weapons and
utensils. |
|
|
|
| Frit |
|
Vitrifyable mix, pre-heated in a calcar
but not completely melted or fused.
Sand and alkali additives mix that, after being partially
fused and then cooled, is ground into a powder to be added
to the final ingredients that go into the pot, to be melted
into glass. Used in making of enameled and moulded glass. |
|
|
