Your question is unclear but most spikes are made with materials other than gold.
the answer is silver which is a precious metal other than gold or another type of metal.
cause its shiny
Its means it consist from 41.6% of gold and 58.4 of other metal. its called 10KT gold. for example 14KT GOLD is 585. (58.5 Gold and 41.5 other metal).
Gold is a natural source of gold. Gold is a metal. Gold is an element; there are no other metals that are part of gold itself. Ore that contains gold, however, might also contain varying amounts of other metals.
The metal used for this purpose is 14-carat gold. This metal is an alloy of gold and another metal. In this alloy, for every 24 parts, 14 parts are of gold and 10 parts are of the other metal.
10 karat gold (cheaper) is 41.66% gold that is alloyed it 58.34% other metal; 14 karat is 58.33% gold that is alloyed with 41.67% other metal.
Spikes of gold
18kt gold is 75% pure gold, as it contains 75% gold and 25% other metal alloys. These alloys are added to enhance the metal's strength and durability.
If metal is 10 percent gold, it is an alloy in the proportion of 1/10 gold and 9/10 some other metal (usually silver).
Gold purity in jewelry is represented by how much -- on a scale of 24K being pure gold -- of the metal is gold. A 10K gold 'batch' will always be a 10K gold batch -- only 10/24ths of the batch is gold, whether solid or melted. And the same is true of a 14K gold 'batch'. In order to 'upgrade' 10K yellow gold metal to 14K yellow gold metal, the 10K metal must be melted, separated from whatever other metal is in the 'batch', then added to less other metal in order for the same gold to be 'upgraded' to 14K. Another option is to replace the 10K setting with a 14K setting.
Bronze or other metal coated with gold.
Gold is a metalloid or more appropiately defined as a transitional metal.