I checked my “Photoatlas of Inclusions in Gemstones, V.2” by John
Koivula. He shows several photos of peridot from Pakistan which have
black to very dark brown needles, not rutile, but similar looking,
the minerals ludwigite-vonsenite. Could be what you have.
The colors of Peridot are pretty distinctive, haven’t seen any dyed
quartz that color.
If you examine the stone in question at 10x, looking thru the stone
at the back facets, you will see much more extreme doubling of the
facet edges in peridot than you will in quartz. Peridot is noticeably
birefrigent-- some stone will look “fuzzy” face up because of the
strong doubling effect. It may help to have a known sample of quartz
to compare. Other more positive tests are refractive index and
Jim Sweaney, CGA, FGA, GG