{
    "variants": {
        "": [ { "model": "block/quartz_bricks", "weight":10 }
,{ "model": "block/quartz_bricks1", "weight":2 }
,{ "model": "block/quartz_bricks2", "weight":4 }
,{ "model": "block/quartz_bricks3", "weight":2 }
,{ "model": "block/quartz_bricks4", "weight":2 }
,{ "model": "block/quartz_bricks5", "weight":2 }
,{ "model": "block/quartz_bricks6", "weight":4 }

 ]   }
}