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Is This Perlite?

  • Thread starter Thread starter elcolombiano
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Is This Perlite?

elcolombiano 16 Replies 1,791 Views
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elcolombiano

elcolombiano

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#1
Is this perlite??? Bought some supposed perlite online and received something i wasn't expecting...
It had many grey, black, brown rocks which i discarded and kept only what looked white or whitish... gave them good rinse and what you see in the pictures is what was left.
I thought the black spots were dirt but they just wont come of. Maybe it jsut isnt perilte? Maybe pumice?
Anythoughts are appreciated.
 

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#3
Might be a lower grade of Perlite. Hard to say. It does look a little off. Crush some up and see if the powder is white. Maybe it’s just dirty.
 
#4
Not sure but i think it is pumice.if you had perlite you could weigh it as perlite is lighter than pumice...
 
#5
ok thanks!
i took a rock from the bunch and it was easily broken with a couple soft taps of a hammer. It is white inside.
I guess have to conclude it is just really low quality perlite and not properly stored, maybe just put on a pile next to gravel or sand... everytime i grab it i end up with sand/little particles in my fingers, even after the thorough rinse i gave it (done this twice actually).
Won't be buying again from that source, but do plan to use up all this "perlite" in my test runs with bag seeds. So far two seedling have this perlite in the bottom of their Hempy bucket containers and seem to be doing well. W
 
#6
Madmax said:
Not sure but i think it is pumice.if you had perlite you could weigh it as perlite is lighter than pumice...
Click to expand...

the texture is really rough, and it does feel heavier than the perlite I used to buy some years ago.
and the more I look at pictures on the web of pumice rocks the more i feel i was sent pumice instead of perlite.. either that or they have a serious problem with their perlite.
 
#7
JWM2 said:
Might be a lower grade of Perlite. Hard to say. It does look a little off. Crush some up and see if the powder is white. Maybe it’s just dirty.
Click to expand...
Looks used, color looks like it’s been in soil and soil imbedded in the pores.
 
#8
these rocks are meant to be used in the bottom of hempy buckets, so even if they are pumice they should work.... they are so dirty though i feel i might have buildup issues.
Thanks for the input all!
 
#9
Crush up a couple pebbles. It should be pretty white inside even after being used.
 
#12
That looks exactly like used/dirty perlite. I wouldn't worry too much. Rinse it as best as you can maybe with a light solution of peroxide to kill any bacteria that may be lingering, and grow on.
 
#13
Deadstill said:
That looks exactly like used/dirty perlite. I wouldn't worry too much. Rinse it as best as you can maybe with a light solution of peroxide to kill any bacteria that may be lingering, and grow on.
Click to expand...

will use peroxide, nice idea! thanks!
 
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