added more assets and still playing with look. pretty happy with it so far

Assets/Materials/BLACK.tres

@@ -0,0 +1,4 @@
+[gd_resource type="StandardMaterial3D" format=3 uid="uid://dv5fpke6frr4n"]
+
+[resource]
+albedo_color = Color(0, 0, 0, 1)

Assets/Materials/BROWN.tres

@@ -0,0 +1,4 @@
+[gd_resource type="StandardMaterial3D" format=3 uid="uid://cautxfwhf4hrq"]
+
+[resource]
+albedo_color = Color(0.303625, 0.154362, 0.0155494, 1)

Assets/Materials/GOLD.tres

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+[gd_resource type="StandardMaterial3D" load_steps=2 format=3 uid="uid://cuvfl1goud4at"]
+
+[sub_resource type="NoiseTexture2D" id="NoiseTexture2D_p40dq"]
+
+[resource]
+albedo_color = Color(0.747432, 0.560495, 0.0238051, 1)
+metallic = 1.0
+roughness = 0.9
+roughness_texture = SubResource("NoiseTexture2D_p40dq")
+uv1_scale = Vector3(0.5, 0.5, 0.5)
+uv1_triplanar = true

Assets/Materials/MARBLE.tres

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+[gd_resource type="StandardMaterial3D" format=3 uid="uid://c7nyda1pumbp6"]
+
+[resource]
+albedo_color = Color(0.719076, 0.719076, 0.719076, 1)
+roughness = 0.53
+clearcoat_enabled = true
+clearcoat_roughness = 0.1
+subsurf_scatter_enabled = true
+subsurf_scatter_strength = 1.0

Assets/Materials/RED.tres

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+[gd_resource type="StandardMaterial3D" format=3 uid="uid://bcva5c2hale6r"]
+
+[resource]
+albedo_color = Color(0.78604, 0.232149, 0.229827, 1)

Assets/Materials/STONE.tres

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+[gd_resource type="StandardMaterial3D" format=3 uid="uid://cxndtxwaasecm"]
+
+[resource]
+albedo_color = Color(0.384229, 0.384229, 0.384229, 1)