UJI PASIR LIMBAH TAMBANG INTAN CEMPAKA
ABSTRACT: During diamond
mining process, waste is usually found. That diamond mine waste (tailing) that
is categorized as gangue mineral is sand and gravel. One of gangue minerals
which are in the form of sand during diamond mine in Cempaka Banjarbaru is
Zircon sand. Until now, that zircon sand
has not been utilized optimally. Based on the size measurement of sand grains
from diamond mine waste, it is passed the standard of filter size number 4 and
related with 4.75 mm filter hole. However the result includes 2.69 Apparent
Specific Gravity as well as 1.41 g/cm3 density. That result is categorized into
normal aggregate type and lower compared to other sand location (Matraman
area). By looking at the morphology and size of sand grains from diamond mine
waste, it is gained smaller and tighter particles distribution, equal particle
distribution and varied particle size. When looking at the form of sand grains,
that diamond mine waste sand is categorized under Sub Angular Grain. Based on EDX
spectrum analysis result, it is contained C, O, Al, Si, Ti, Fe, Cu, Zr. Based
on 3 different samples of diamond mine waste sand, it is gained average Zr
value which is the first Zr sample 1.5, the second Zr sample 0.485, the third
Zr sample 0.925. The highest Zr value is in the first sample, which is the
sample in sand container box, with average Zr 1.5% composition of Zircon. From
the 3 samples of diamond mine waste sand in the different location, it is
gained average Zr values which are the first Zr sample 1.5, the second Zr
sample 0.485, the third Zr sample 0.925. The highest Zr value is in the first
sample, which is the sample in sand container box, with average Zr 1.5%
composition of Zircon.
Penulis: Ninis Hadi Haryanti
Kode Jurnal: jpfisikadd150946