diff --git a/includes/powder.h b/includes/powder.h
index 843ac0542..f30e87980 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -423,7 +423,7 @@ static const part_type ptypes[PT_NUM] =
     {"BOMB",	PIXPACK(0xFFF288),	0.6f,	0.01f * CFDS,	0.98f,	0.95f,	0.0f,	0.1f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	0,	20,	1,	30,		SC_EXPLOSIVE,	R_TEMP-2.0f	+273.15f,	29,		"Bomb.", TYPE_PART, NULL},
     {"C-5",		PIXPACK(0x2050E0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	88,		"Cold explosive", TYPE_SOLID | PROP_NEUTPENETRATE, NULL},
     {"SING",	PIXPACK(0x242424),	0.7f,	0.36f * CFDS,	0.96f,	0.80f,	0.1f,	0.12f,	0.00f,	-0.001f	* CFDS,	1,	0,		0,	0,	0,	1,	86,		SC_NUCLEAR,		R_TEMP+0.0f	+273.15f,	70,		"Singularity", TYPE_PART, NULL},
-    {"QRTZ",	PIXPACK(0xAADDDD),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	3,		"Quartz, breakable mineral. Conducts but becomes brittle at lower temperatures.", TYPE_SOLID | PROP_CONDUCTS | PROP_HOT_GLOW, NULL}, 
+    {"QRTZ",	PIXPACK(0xAADDDD),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	3,		"Quartz, breakable mineral. Conducts but becomes brittle at lower temperatures.", TYPE_SOLID | PROP_HOT_GLOW, NULL}, 
     {"PQRT",	PIXPACK(0x88BBBB),	0.4f,	0.04f * CFDS,	0.94f,	0.95f,	-0.1f,	0.27f,	0.00f,	0.000f	* CFDS,	1,	0,		0,	0,	0,	1,	90,		SC_POWDERS,		R_TEMP+0.0f	+273.15f,	3,		"Broken quartz.", TYPE_PART| PROP_HOT_GLOW, NULL}, 
     {"SEED",	PIXPACK(0xFBEC7D),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_LIFE,		9000.0f,				40,		"B2/S", TYPE_SOLID|PROP_LIFE, NULL},
     {"MAZE",	PIXPACK(0xA8E4A0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	1,	100,	SC_LIFE,		9000.0f,				40,		"B3/S12345", TYPE_SOLID|PROP_LIFE, NULL},
diff --git a/src/powder.c b/src/powder.c
index b9fa17e87..27b48faa0 100644
--- a/src/powder.c
+++ b/src/powder.c
@@ -1112,7 +1112,7 @@ int nearest_part(int ci, int t)
 
 void update_particles_i(pixel *vid, int start, int inc)
 {
-    int i, j, x, y, t, nx, ny, r, a, s, lt, rt, fe, nt, lpv, nearp, pavg, nnx, nny, q, golnum, goldelete, z, ctype, temp, trade, docontinue, nxx, nyy, nxi, nyi;
+    int i, j, x, y, t, nx, ny, r, a, s, lt, rt, fe, nt, lpv, nearp, pavg, nnx, nny, q, golnum, goldelete, z, ctype, temp, trade, docontinue, nxx, nyy, nxi, nyi, neighbors;
     float mv, dx, dy, ix, iy, lx, ly, d, pp, nrx, nry, dp, rr, rrr;
     float nn, ct1, ct2;
     float pt = R_TEMP;
@@ -1308,7 +1308,7 @@ void update_particles_i(pixel *vid, int start, int inc)
 		  for(ny=CELL;ny<YRES-CELL;ny++)
 		{
 			r = pmap[ny][nx];
-			int neighbors = gol2[nx][ny][0];
+			neighbors = gol2[nx][ny][0];
 			if(neighbors==0 || !(ptypes[r&0xFF].properties&PROP_LIFE || !r&0xFF) || (r>>8)>=NPART)
 				continue;
 			for( golnum = 1;golnum<NGOL;golnum++)