Gem stones

[bookwormer]

Have done 45 out of 50 of these, just stuck on five more, can anyone help please? - All rock gems or substances used in jewellry making -

15. Sue an old German coin. (9)

45. 12% of the wolrd's surface is made of this.(6)

47. When being scornful, the Romans would have replaced the 100 by a 10. (8)

48. These kind of nerves are experienced by most actors. (8)

50. Golden ivy (5) Is this Ochre?? if so, why?

[goldfish1]

48. butterfly - but it's 9 letters

[don1]

I think 45 is Quartz

[shaneystar2]

45. Could be .. Chrysolite
A brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone.

[valerieb1254]

50) I answered this one a while ago

IVORY

Symbol for Gold = OR + IVY

[bookwormer]

Thanks very much to all of you, now just need numbers 15, 47, 48, the list's getting shorter!! thanks again.

[valerieb1254]

47) Sardonyx..An Onyx with bands of Cornelian or Sard.

Scornful = Sardonic

Replace the C which = 100 With X which = 10

[atoach]

an attack of nerves felt by musicians is known as 'the pearlies', and it may be the case for actors too.

[bookwormer]

Many thanks valerieb and atoach, sardonyx is great, should have seen that, but not too sure of pearlies atoach, the other answers I've already got are specific gems / stones etc, but thanks for the try! Now down to just numbers 15 and 48!!!!

[atoach]

marcasite ?

mark-a-cite ?

[atoach]

In defence of my previous answer, a 'pearly' can be a pearl button, so maybe 'pearlies' isn't so bad ...

[bookwormer]

thank you very very much for MARASITE! brilliant! sorry, didn't mean to sound so anti your 'pearlies' answer, food for thought!

[bookwormer]

sorry meant MARCASITE!

[patsyann]

bookwormer Question 48 came up a few weeks ago and I found a Gemstone called Prehnite.Could it be prenight nerves.?

[bookwormer]

Fantastic patsyann, I'm sure you're right!!!! I can post it now, all done, thanks again!