Making Rock Marbles

A marble is a small spherical toy often made from glass clay steel plastic or agate these balls vary in size.

Making rock marbles.

At the risk of opening up a whole can worms memories for some my sister a former 4 h agent has a huge collection of the kinds of toys and games that were homemade some. In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3 usually marble contains other minerals including quartz graphite pyrite and iron oxides these minerals can give marble a pink brown gray green or variegated coloration. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble is typically not foliated although there are exceptions in geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone. It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is.

A circle of copper or worn out plywood blade set at. Marble is commonly used for sculpture and as a building material. Most commonly they are about 13 mm 1 2 in in diameter but they may range from less than 1 mm 1 30 in to over 8 cm 3 in while some art glass marbles for display purposes are over 30 cm 12 in wide marbles can be used for a variety of games called marbles. I think it is at the museum of appalachia at norris tn.

If he s planning on making marbles regularly using a wet saw is probably gonna be faster than grinding down the corners on an abrasive wheel.